2012 bmc auction specimens -...

A SAMPLER OF SELECTED

2014 BMC VOICE AUCTION SPECIMENS

Volume 3

December 2013

Quartz var. Chalcedony - SiO2

Dana No: 75.01.03.01

Strunz No: 04.DA.05

Ecofinia River west of Perry, Florida

Specimen Size:

Dimensions: 22.5 x 17.0 x 10.0 cm.

Total Weight: 3218 g

This magnificent large cabinet

specimen includes:

both halves of the matched pair

created by cutting a large chunk of

agatized coral in two to reveal the

interior crystals.

The back sides retain the original coral

appearance.

Fluorescent

Donated by Dr. Bernie Wuench

Photograph by

Mike Haritos

Quartz has been known and appreciated since

pre-historic times. The most ancient name known

is recorded by Theophrastus in about 300-325

BCE, κρύσταλλος or kristallos.

Quartz var. Chalcedony (Agatized Coral), Florida

Mimetite & Wulfenite, Mexico

Mimetite - Pb5(AsO4)3Cl

Dana No: 41.08.04.02

Strunz No: 08.BN.05

Wulfenite - PbMoO4

Dana No: 48.01.03.01

Strunz No: 07.GA.05

Ojuela Mine, Mapimí, Mun. de Mapimí,

Durango, Mexico.

Specimen Size:


Weight: 160 g.

Photograph by Mike Haritos

Mimetite is a secondary mineral found in the

oxidized zones of lead deposits. Its color varies

from pale yellow to yellowish-brown to orange-

yellow to orange-red, brownish, greenish, white

and colorless.

Wulfenite is a secondary lead mineral often found

as thin tabular crystals with a bright orange-red,

yellow-orange, yellow or yellowish grey colour in

the oxidized zones of hydrothermal lead deposits.

Lot of 4 Slightly Smoky Quartz Crystals, Switzerland

Quartz - SiO2

Dana No: 75.01.03.01

Strunz No: 09.FA.30

Gotthard Oberalp Area, Uri

Switzerland.

4 Gemmy Thumbnail specimens

Donated by Mike Haritos


The word "quartz" is derived from

the German word "Quarz" and its

Middle High German ancestor

"twarc", which probably originated in

Slavic (cf. Czech tvrdý ("hard"),

Polish twardy ("hard")). Quartz is

the most common mineral found on

the surface of the Earth. It is a

natural form of silicon dioxide.

Fluorapophyllite-(K)* & Stilbite-Ca, India

Fluorapophyllite-(K) *

(K,Na)Ca4(Si4O10)2F•8(H2O)

Dana No: 72.03.01.01

Strunz No: 09.EA.15

Stilbite-Ca

NaCa4[Al8Si28O72]•n(H2O) (n=28-32)

Dana No: 77.01.04.03

Strunz No: 09.GE.10

Pune District (Poonah District),

Maharashtra, India.

Specimen Size

15.5 x 15.0 x 10.5 cm., weight: 1937g.

Donated by STONETRUST


Apophyllite was named in 1806 by Rene Just Haüy from the Greek for "away from" (ἀπό, apo)

and "leaf" (φύλλον, phyllos), in allusion to the way it exfoliates upon heating. * The name was

recently revised from apophyllite-(KF) to fluorapophyllite-(K) (Hatert et al,European Journal of

Mineralogy 25, 2013).

Stilbite is from Greek "stilbein", to glitter

of shine, or "stilbe", a mirror, alluding to its

pearly or vitreous luster.

Azurite and Malachite, Bisbee, AZ

Azurite - Cu3(CO3)2(OH)2

Dana No: 16a.02.01.01

Strunz No: 05.BA.05

Malachite - Cu2(CO3)(OH)2

Dana No: 16a.03.02.01

Strunz No: 05.BA.10

Bisbee, Warren District, Mule Mts,

Cochise Co., Arizona, USA.

A large cabinet specimen from a classic

US azurite locality

Specimen Size:

23.0 x 17.5 x 13.0 cm.

Weight: 5000+ g.

Donated by Dr. Bernie Wuench Photograph by Mike Haritos

The Azurite name was derived from the ancient Persian lazhward, meaning "blue", in allusion to the color. The name was changed to azurite in 1824 by Francois Sulpice Beudant. Malachite was named in antiquity (see Pliny the Elder, 79 CE) as “molochitus” after the Greek μαλαχή, "mallows," in allusion to the green color of the leaves. It became known in the new spelling, malachites, at least by 1661.

Epidote, Pakistan

Epidote

(Ca,Pb,Sr)2(Al,Fe3+)3(SiO4)(Si2O7)O(OH)

Dana No: 58.02.01a.03

Strunz No: 09.BG.05a

Raywoo mine, Quetta district,

Balochistan, (Baluchistan)Pakistan.

Specimen Size:


Weight: 120 g.

An unusual tabular crystal from the

May, 2011 find in Pakistan


Epidote was named in 1801 by Rene Just Haüy

from the Greek επιδοσιζ "Epidosis" = "increase"

in allusion to the common crystal characteristic

of one longer side at the base of the prism.

Clinozoisite and Epidote are end members of a

solid solution series with epidote containing

more iron. Epidote is the Al2Fe3+ analogue of

Clinozoisite.

Lot of 3 Thumbnail (TN) Specimens, Tsumeb, Namibia

Azurite TN, Dioptase TN, & a double TN

of Primary & crystalized Malachite.

Azurite - Cu3(CO3)2(OH)2

Dana No: 16a.02.01.01

Strunz No: 05.BA.05

Dioptase - CuSiO2(OH)2

Dana No: 61.01.03.01

Strunz No: 09.CJ.30

Malachite - Cu2(CO3)(OH)2

Dana No: 16a.03.02.01

Strunz No: 05.BA.10

Tsumeb Mine, Tsumeb, Otikoto

Region, Namibia.



Azurite, Dioptase, and Malachite are secondary copper minerals frequently found in the oxidized zones of Cu-bearing ore deposits. Tsumeb is a world-famous Cu-Pb-Zn-Ag-Ge-Cd mine, renowned for a wealth of rare and unusual minerals. It was discovered and initially operated in 1907 and was closed in 1996 for economic reasons. The name origins of malachite and azurite were previously described on slide 7. Dioptase was named in 1797 by Hauy from the Greek for "through" and "to see" in allusion to the visibility of internal cleavage planes.

Calcite, Galena and Dolomite, Illinois

Calcite - CaCO3 Dana No: 14.01.01.01

Strunz No: 05.AB.05

Galena - PbS Dana No: 02.08.01.01

Strunz No: 02.CD.10.

Dolomite - CaMg(CO3)2 Dana No: 14.02.01.01

Strunz No: 05.AB.10

Southern, Illinois

Specimen Size: 15.8 x 8.0 x 14.0 cm, weight: 1640 g.

Donated by STONETRUST


Galena was named by Pliny the Elder in 77-79 from the Greek "galene" meaning lead ore. It is the primary ore mineral of lead. Worked for its lead content as early as 3000 BC, it is found in ore veins with sphalerite, pyrite, chalcopyrite, tennantite, etc. and in skarns, as well as in sedimentary rocks where it may replace carbonate beds or be deposited in pore spaces. The crystals are bright when fresh but often tarnish after exposure to air.

Stilbite-Ca & Chabazite-Ca, Nova Scotia, Canada

Stilbite-Ca

NaCa4[Al8Si28O72]•n(H2O) (n=28-32)

Dana No: 77.01.04.03

Strunz No: 09.GE.10

Chabazite-Ca

(Ca0.5,Na,K)4[Al4Si8O24]•12H2O

Dana No: 77.01.02.01

Strunz No: 09.GD.10

Cap D’Or, North of the Lighthouse,

Cumberland County, Nova Scotia, Canada

Specimen Size

15.0 x 9.2 x 8.5 cm, weight: 595 g

Donated by Dr. Bernie Wuensch


Stilbite was named in 1797 by Jean Claude de la Métherie from Greek στιλβη "stilbein", to glitter of shine, or "stilbe", a mirror, alluding to its pearly or vitreous luster. Additional varietal names and synonyms have been proposed: blättricher zeolit, hypostilbite, puflerite, radiated zeolite, and syhedrite. Chemical suffixes were added by the IMA.

Chalcopyrite and Pyrite on Calcite, China

Chalcopyrite - CuFeS2

Dana No: 02.09.01.01

Strunz No: 02.CB.10a CaCO3

Pyrite - FeS2

Dana No: 02.12.01.01

Strunz No: 02.EB.05a

Calcite - CaCO3

Dana No: 14.01.01.01

Strunz No: 05.AB.05

Fengjiashan Mine (Daye copper mine), Daye

Co., Huangshi Prefecture, Hubei Province,

China.

Specimen Size

Dimensions: 6.1 x 6.1 x 3.0 cm

Weight: 80 g

Multi-colored iridescent chalcopyrite adds

highlights to select calcite crystal faces Photograph by Mike Haritos

Chalcopyrite is a major ore of copper. It is common in sulfide veins and disseminated in igneous rocks. Chalcopyrite was named in 1725 by Johann Friedrich Henckel from the Greek "chalkos", copper, and "pyrites", strike fire.

Sphalerite & Pyrite, Mexico

Sphalerite - (Zn,Fe)S

Dana No: 02.08.02.01

Strunz No: 02.CB.05a

Pyrite - FeS2

Dana No: 02.12.01.01


Fresnillo de Gonzalez Echeverria, Mun.

de Fresnillo, Zacatecas, Mexico

Specimen Size:


weight: 320 g.



Sphalerite, also known as Blende or Zinc Blende, is the major ore of zinc. When pure (with little or no iron) it forms clear crystals with colors ranging from pale yellow (known as Cleiophane) to orange and red shades (known as Ruby Blende), but as iron content increases it forms dark opaque metallic xls. (known as Marmatite). Named in 1847 by Ernst Friedrich Glocker from the Greek σφαλεροζ "sphaleros" = treacherous, in allusion to the ease with which dark varieties were mistaken for galena, but yielded no lead. Originally called blende in 1546 by Georgius Acricola (Georg Bauer). Known by a variety of chemical-based names subsequent to Agricola and before Glocker including "zincum”.

Heulandite-Ca, India

Heulandite-Ca

(Ca,Na)2-3Al3(Al,Si)2Si13O36•12(H2O)

Dana No: 77.01.04.01

Strunz No: 09.GE.05

Aurangabad District, Maharashtra, India.

Specimen Size


Weight: 233g.

The Heulandite crystals are nicely

separated with good relief from the

contrasting white matrix


Heulandite was named in 1822 by Henry James Brooke in honor of Johann Heinrich "John Henry" Heuland (1778 – 1856). Heuland is among the best known of all 19th-century British mineral dealers. Cooper (2006) wrote of him: "Heuland's influence on mineral collecting in England was enormous; his predilection for fine specimens legendary, and his determination to obtain good locality information ahead of his time."

Heulandite is a low temperature zeolite found in a wide variety of geologic environments: volcanic rocks, metamorphic rocks, pegmatites, tuffs, and deep-sea sediments.

Calcite, Fluorite with minor Pyrtite, Mexico

Calcite - CaCO3

Dana No: 14.01.01.01

Strunz No: 05.AB 05

Fluorite - CaF2

Dana No: 09.02.01.01

Strunz No: 03.AB.25

Fresnillo de Gonzalez Echeverria

(Fresnillo), Mun. de Fresnillo, Zacatecas,

Mexico??

Specimen Size:

Dimensions: 18.0 x 17.0 x 10 cm

Weight: 3207 g.



Fluorite is found as a common gangue mineral in hydrothermal veins, especially those containing lead and zinc minerals. It is also found in some greisens, granites, pegmatites and high-temperature veins, and as a component of some marbles and other metamorphic rocks.

Pyromorphite, France

Pyromorphite - Pb5(PO4)3Cl

Dana No: 41.08.04.01

Strunz No: 08.BN.05

Les Farges Mine, Ussel, Corrèze,

Limousin, France.

Specimen Size: 11.0 x 6.5 x 4.0 cm

Consigned by STONETRUST


Pyromorphite was named in 1813 from the Greek for "fire" and "form", because, after being melted into a globule, a sample will begin to take on a crystalline shape during cooling. Pyromorphite is a secondary lead mineral found in the oxidised zones of lead deposits. It typically forms as green, yellowish, brownish, greyish or white barrel-shaped hexagonal prisms, in clusters or as druses on matrix. The individual crystals are often modified or etched, giving a hopper-like appearance. This lead chloride phosphate forms a complete series with Mimetite (lead chloride arsenate), and many specimens are intermediates between the two end-members.

Calcite Stalactite, Bisbee, Arizona

Calcite - CaCO3

Dana No: 14.01.01.01

Strunz No: 05.AB

Bisbee, Warren District, Mule

Mountains, Cochise County, AZ

Specimen Size:


Weight: 121g.

Donated by Barbara Liebman


Calcite is an important rock forming mineral. It forms in sedimentary deposits as limestone, can be regionally or contact metamorphosed into marbles and rarely forms igneous rocks (carbonatites). It also is a common gangue mineral in hydrothermal deposits. Calcite stalactites such as the one shown here form in mines and caves due to slow deposition over time by dripping water rich in calcium carbonate. In Bisbee, AZ both the Southwest Mine and the Copper Queen Mine have produced calcite stalactites.

Lot of Two; Quartz & Adularia, Switzerland

Quartz var. Smoky - SiO2

Dana No: 75.01.03.01

Strunz No: 04.DA.05

Orthoclase var. Adularia - KAlSi3O8

Dana No: 76.01.01.01

Strunz No: 09.FA.30

Goschernalp, Kanton Uri,

Switzerland

Specimen Dimensions:

5.5 x 4.5 x 2.5 cm, weight: 150 g.

4.5 x 4.5 x 3.5 cm, weight: 110 g.

Donated by Mike Haritos Photograph by Mike Haritos

Quartz has been known and appreciated since pre-historic times. The most ancient name known is recorded by Theophrastus in about 300-325 BCE, κρύσταλλος or kristallos. The varietal names, rock crystal and bergcrystal, preserve the ancient usage. The root words κρύοσ signifying ice cold and στέλλειυ to contract (or solidify) suggest the ancient belief that kritallos was permanently solidified ice. Adularia is a more ordered low-temperature variety of Orthoclase. It is generally found in alpine-type parageneses. The varietal name originated in 1780 by Ermenegildo Pini based on the name of the type locality, the Adula Massif (part of the Gotthard massif), Switzerland.

Fluorite on Sphalerite, Elmwood, Tennessee

Fluorite - CaF2

Dana No: 09.02.01.01

Strunz No: 03.AB.25


Dana No: 02.08.02.01


Elmwood mine, Carthage, Smith Co.,TN

Specimen Size;

15.0 x 13.0 x 8.0 cm, weight: 3152 g.



Fluorite is found as a common gangue mineral in hydrothermal veins, especially those containing lead and zinc minerals. The species was named in 1797 by Carlo Antonio Galeani Napione from the Latin, fluere = "to flow" (for its use as a flux). The term fluorescence is derived from fluorite, which will often, but not always, exhibit this effect. The element fluorine also derives its name from fluorite, a major source for the element.

Chalcopyrite, Missouri

Chalcopyrite – CuFeS2

Dana No: 02.09.01.01


Brushy Creek Mine, Greeley,

Viburnum Trend District, Reynolds

Co., Missouri, USA.

Specimen Size:


Weight: 113 g.

Sparkling crystals of iridescent,

luminous, Chalcopyrite.


Chalcopyrite was named in 1725 by Johann

Friedrich Henckel from the Greek "chalkos",

copper, and "pyrites", strike fire.

Lot of 4 Zeolite Specimens, India

Crystals of Fluorapophyllite & Stilbite,

with minor Calcite and Quartz.

Fluorapophyllite-(K) *

(K,Na)Ca4(Si4O10)2F•8(H2O)

Dana No: 72.03.01.01

Strunz No: 09.EA.15

Stilbite-Ca

NaCa4[Al8Si28O72]•n(H2O) (n=28-32)

Dana No: 77.01.04.03

Strunz No: 09.GE.10

Pune District (Poonah District),

Maharashtra, India

Largest Specimen


Weight: 82 g.

Donated by Mike Haritos Photograph by Mike Haritos

Stilbite is from Greek "stilbein", to glitter of shine, or "stilbe", a mirror, alluding to its pearly or vitreous luster. Apophyllite was named in 1806 by Rene Just Haüy from the Greek for "away from" (ἀπό, apo) and "leaf" (φύλλον, phyllos), in allusion to the way it exfoliates upon heating. * The name was recently revised from apophyllite-(KF) to fluorapophyllite-(K) (Hatert et al,European Journal of Mineralogy 25, 2013)

Sphalerite, Elmwood, Tennessee


Dana No: 02.08.02.01


Elmwood Mine, Carthage, Smith

County, Tennessee

Specimen Size:

21.5 x 13.0 x 6.3 cm

Weight: 1559 g.

A significant large cabinet

specimen from a major US locality

known for high quality calcite,

fluorite and sphalerite specimens

Consigned by STONETRUST Photograph by Mike Haritos

Sphalerite, also known as Blende or Zinc Blende, is the major ore of zinc. The Elmwood mine, along with the Cumberland and Gordonsville mines in Smith County, TN are among the most famous zinc mines in the United States. The Elmwood mine is best known for producing world-class golden Calcites along with beautiful purple Fluorites, and to a lesser extent Sphalerites, Galenas and Barites. The mine was first opened in 1969.

Calcite with minor Fluorite, Tennessee

Calcite - CaCO3

Dana No: 14.01.01.01

Strunz No: 05.AB 05

Elmwood mine, Carthage, Central

Tennessee Ba-F-Pb-Zn District,

Smith Co.TN

Specimen Size


Weight: 185 g.

Interesting crystal shape



The mineral Calcite was named in ancient

times by Gaius Plinius Secundus (Pliny the

elder) in 79. The name is derived from

Calx, Latin for Lime. Calcite is highly

variable in color and crystal forms, but it

is most easily recognized by its reactivity

to acids, even weaker acids like vinegar.

Ctenodentelops & Eurypholis Fossils, Lebanon

Ctenodentelops, Order

Elopiformes, Family Elopidae.

Upper Cretaceous, Hadjula,

Lebanon

Eurypholis boissieri is a

predatory fossil fish which comes

from Lebanon (Haqel and

Hajoula) during the Cenomanian

stage (~95 million years ago) of

the Cretaceous period.

Eurypholis was a medium sized

fish with a pointed snout, large

eyes and a big head. This big head

had very large jaws with sharp-

pointed teeth. It also goes by the

name "viper fish".

Specimen Size

35.5 x 38.1 cm.

Weight: 1400 g.

Consigned by Michael Shih

Photograph by Michael Shih

Hemimorphite, Mexico

Hemimorphite

Zn4Si2O7(OH)2•(H2O)

Dana No: 56.01.02.01

Strunz No: 09.BD.10

Ojuela Mine, Mapimí, Mun. de

Mapimí, Durango, Mexico.

Specimen Size:


Weight: 235 g

This specimen nicely displays

several attractive sprays of

hemimorphite crystals


Hemimorphite is a secondary mineral found in weathered portions of zinc deposits. It was named in 1853 by Adolph Kenngott in allusion to the hemimorphic morphology of the crystals (i.e.: the two ends of a crystal are terminated by different crystal faces). Many names were assigned to this species previously including calamine.

Pyrite xls. In Matrix, Spain

Pyrite - FeS2

Dana No: 02.12.01.01


Navajún is a village in the province

and autonomous community of La

Rioja, Spain.

Specimen Size:


Weight: 331 g.



Pyrite was named in antiquity from

the Greek "pyr" for "fire", because

sparks flew from it when hit with

another mineral or metal. Pyrite was

known to Dioscorides (~50 CE) as περι

υληζ ιατρικηζ a name which included

both pyrite and chalcopyrite.

Fluorite w/ Pyrite Inclusions, Illinois

Fluorite - CaF2

Dana No: 09.02.01.01

Strunz No: 03.AB.25

Pyrite - FeS2

Dana No: 02.12.01.01


Rosiclaire, IL.

Specimen Size


Weight: 1772 g.

A large cabinet specimen featuring

multi-colored fluorite crystals with

pyrite inclusions

Consigned by STONETRUST Photograph by Mike Haritos

Since the early 1800s, fluorite was mined in southeastern Illinois. The fluorspar-rich region, which reaches from southeastern Illinois into parts of Kentucky, was called the Illinois-Kentucky Fluorspar Mining District. In Illinois, fluorite was mined almost exclusively in Hardin and Pope Counties. The main production came from fissure-vein deposits in the Rosiclare district, and stratiform (bedding plane) deposits in the Cave in Rock district. Most mining was underground, as much as 1,300 feet deep, but open-pit mines operated where fluorite deposits intersected land surface. The last fluorspar mine in Illinois closed in December 1995.

Lot of Two Acushnet Specimens: Quartz & Feldspar

Quartz - SiO2

Dana No: 75.01.03.01

Strunz No: 09.FA.30

6.0 x 5.0 x 1.3 cm, weight: 60 g

Albite & Adularia

Adularia is perched epitaxally on the

Pericline xls. (a Sodium rich Albite)

Albite var. Pericline - NaAlSi3O8 − Dana No: 76.01.03.01

− Strunz No: 09.FA.35

Orthoclase var. Adularia - KAlSi3O8 − Dana No: 76.01.01.01

− Strunz No: 09.FA.30

8.8 x 6.2 x 4.3 cm, weight: 176 g.

Acushnet Quarry (P. J. Keating

Quarry; Tilcon Capaldi Quarry;

Warren Brothers Quarry; Blue Stone

Quarry; Old Bluestone Quarry),

Acushnet, Bristol Co.,

Massachusetts, USA.



The Acushnet quarry is renowned for its alpine

cleft geology and suite of related minerals. It

has produced “world class” apatite crystals as

well as excellent specimens of Albite, Adularia,

Calcite, Quartz and Titanite.

2012 bmc auction specimens -...

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