A SAMPLER OF SELECTED
2017 BMC AUCTION SPECIMENS
(2017 Auction Date is Saturday, 21 January)
Volume 1
Pyrite [FeS2]
 Locality

Huanzala Mine
 Huallanca Huanuco
 Peru
 Size

6.5 x 6.0 x 4.8 cm
 BMC Purchase
Crystal System: isometric
Physical Properties
 Transparency: opaque
 Mohs hardness: 6 to 6.5
 Density: 4.8 to 5 gm/cm3
 Streak: greenish-black to
brownish-black
 Luster: metallic
Photograph by Mike Haritos
Azurite
Cu3(CO3)2(OH)2
 Locality

Milpillas Mine
 Cuitaca
 Mun. de Santa Cruz
 Sonora, Mexico.
 Size: toe nail
 Donated by Don
Olson
Crystal System: monoclinic
Physical Properties
 Transparency: Transparent,
Translucent
 Mohs hardness: 3.5 to 4
 Density: approx 3.8 gm/cm3
 Streak: light blue
 Luster: vitreous
Photograph by Mike Haritos
Baryte [BaSO4]
 Locality

Nador
 Morocco
 Size

8.8 x 6.0 x 5.0 cm
 BMC Purchase
Crystal System: orthorhombic
Physical Properties
 Transparency: Transparent,
Translucent, opaque
 Mohs hardness: 3 to 3.5
 Density: approx 4.5 gm/cm3
 Streak: white
 Luster: Vitreous, Pearly
Photograph by Mike Haritos
Gold [Au]
 Locality

R. J. Roberts Lode
 Willow Creek
 Pershing County
 Nevada
 Size: thumbnail
 BMC Purchase
Crystal System: isometric
Physical Properties
 Transparency: opaque
 Mohs hardness: 2.5 to 3
 Density: 15 to 19.3 gm/cm3
 Streak: Shining yellow
 Luster: metallic
Photograph by Mike Haritos
Fluorite [CaF2]
 Locality






Xianghuapu Mine
(Maiwan Mine)
Xianghualing Snpolymetallic ore field
Linwu Co.,
Chenzhou Prefecture
Hunan Province
China.
 Size

10.8 x 6.2 x 2.8 cm
 Donated by Bill
Metropolis
Photograph by Mike Haritos
Crystal System: isometric
Physical Properties
 Transparency: transparent
 Mohs hardness: 4
 Density: 3.175 - 3.56 gm/cm3


Streak: white
Luster: Vitreous, Dull
Calcite [CaCO3]
 Locality






Xikuangshan Mine
Dongchuan Cu ore field
Dongchuan District
Kunming Prefecture
Yunnan Province
China
 Size: 8.4 x 7.8 x 5.2 cm
 BMC Purchase
Crystal System: trigonal
Physical Properties
 Transparency: transparent, translucent
 Mohs hardness: 3
 Density: approx 2.71 gm/cm3
 Streak: white
 Luster: Vitreous, Sub-Vitreous,
Resinous, Waxy, Pearly
Photograph by Mike Haritos
Quartz [SiO2] var. Amethyst
 Locality

Artigas
 Artigas Department
 Uruguay
 Size

17.0 x 6.1 x 3.5 cm
 Includes custom wood stand (not
shown)
 BMC Purchase
Crystal System: trigonal
Physical Properties
 Transparency: Transparent, Translucent
 Mohs hardness: 7
 Density: 2.65 to 2.66 gm/cm3
 Streak: white
 Luster: Vitreous
Photograph by Mike Haritos
Wulfenite [Pb(MoO4)] & Mimetite [Pb5(AsO4)3Cl]
 Locality

Rowley Mine.
 Maricopa County
 Arizona
 Size

Thumbnail
 Includes acrylic stand
 BMC Purchase
Wulfenite Crystal System: Tetragonal
Wulfenite Physical Properties
 Transparency: Transparent, Translucent, Opaque
 Mohs hardness: 2½ - 3
 Density: 6.5 to 7.5 gm/cm3
 Streak: white
 Luster: Adamantine, Sub-Adamantine, Resinous
Photograph by Mike Haritos
Float Copper [Cu]
 Locality

Upper Peninsula
 Michigan
 Size

17.5 x 13.0 x 1.0 cm.
 BMC Purchase
Crystal System: isometric
Physical Properties
 Transparency: opaque
 Mohs hardness: 2.5 to 3
 Density: approx 8.95 gm/cm3
 Streak: copper - red
 Luster: metallic
Photograph by Mike Haritos
Ammonite Fossil
 Species

Colignoceras
 Upper cretaceous
 Locality

Tulear
 Madagascar
 Size

10.0 x 9.4 x 2.5
 BMC Purchase
Photograph by Mike Haritos
Galena [PbS] & Pyrite [FeS]
 Locality






Krushev dol deposit
Krushev dol mine
Madan ore field
Rhodope Mountains
Smolyan Oblast
Bulgaria
 Size: 6.2 x 5.7 x 3.7 cm.
 BMC Purchase
Pyrite Crystal System: isometric
Pyrite Physical Properties
 Transparency: opaque
 Mohs hardness: 6 to 6.5
 Density: 4.8 to 5 gm/cm3
 Streak: greenish-black to
brownish-black
 Luster: metallic
Photograph by Mike Haritos
Manganocalcite [(Ca,Mn)CO3]
& Pyrite [FeS]
 Locality






Krushev dol deposit
(Krusov dol deposit)
Krushev dol mine
Madan ore field
Rhodope Mountains
Smolyan Oblast
Bulgaria
 Size: 11.0 x 5.0 x 3.9 cm
 BMC Purchase
Photograph by Mike Haritos
Calcite Crystal System: trigonal
Physical Properties
 Transparency: transparent, translucent
 Mohs hardness: 3
 Density: 2.71 gm/cm3
 Streak: white
 Luster: Vitreous, Sub-Vitreous, Resinous, Waxy, Pearly
Galena [PbS] & Sphalerite [ZnS]
 Locality





Krushev dol deposit
Krushev dol mine
Madan ore field
Rhodope Mountains
Smolyan Oblast, Bulgaria
 Size: 6.2 x 5.7 x 3.7 cm
 BMC Purchase
MINERAL
Galena
Sphalerite
Crystal System
Isometric
Isometric
Transparency
Opaque
transparent,
translucent
Hardness
2.5
3.5 to 4
Density
7.58 gm/cm3 3.9 - 4.1 gm/cm3
Streak
lead -grey
pale yellow to
brown
Luster
metallic, dull
adamantine,
resinous
Photograph by Mike Haritos
Calcite [CaCO3]
 Locality

Pune District (Poonah
District)

Maharashtra

India
 Size: 7.5 x 6.3 x 3.5 cm
 BMC Purchase
Calcite Crystal System: trigonal
Physical Properties
 Transparency: transparent,
translucent
 Mohs hardness: 3
 Density: 2.71 gm/cm3
 Streak: white
 Luster: Vitreous, Sub-Vitreous,
Resinous, Waxy, Pearly
Photograph by Mike Haritos
Apophyllite [KCa4(Si4O10)2F•8(H2O)] and
Stilbite [NaCa4Al8Si28O72•30(H2O)]
 Locality

Pune District (Poonah District)

Maharashtra

India
 Size: 3.9 x 2.7 x 2.3 cm
 BMC Purchase
MINERAL
Apophyllite
Stilbite
Crystal System
Tetragonal
Monoclininc
Transparency
transparent,
translucent
transparent,
subtransparent,
translucent
Hardness
4 to 5
3.5 to 4
Density
2.3 - 2.4 gm/cm3
2.1 – 2.2 gm/cm3
Streak
white
white
Photograph by Mike Haritos
Luster
Vitreous - Pearly
Vitreous - Pearly
Stilbite [NaCa4Al8Si28O72•30(H2O)] and
Stalactitic Chalcedony (Quartz) [SiO2]
 Locality

Pune District (Poonah
District)

Maharashtra

India
 Size: 4.9 x 1.7 x 1.7 cm
 BMC Purchase
MINERAL
Stilbite
Chalcedony
Crystal System
Monoclinic
Triclinic
Transparency
transparent,
subtransparent,
translucent
opaque,
transparent,
translucent
Hardness
3.5 to 4
6.5 to 7
Density
2.1 – 2.2 gm/cm3 2.6 – 2.65 gm/cm3
Streak
white
white
Luster
Vitreous - Pearly
Vitreous
Photograph by Mike Haritos
Heulandite [(Ca,Na)2-3Al3(Al,Si)2Si13O36•12(H2O)],
Stilbite [NaCa4Al8Si28O72•30(H2O)] & Stalactic Chalcedony
 Locality

Pune District (Poonah District)

Maharashtra

India
 Size: 4.5 x 3.0 x 1.5 cm
 BMC Purchase
MINERAL
Heulandite
Stilbite
Crystal System
Monoclinic
Monoclinic
Transparency
transparent,
subtranslucent
transparent to
translucent
Hardness
4 to 5
3.5 to 4
Density
2.2 gm/cm3
2.1 – 2.2 gm/cm3
Streak
white
white
Luster
Vitreous - Pearly
Vitreous - Pearly
Photograph by Mike Haritos
Beryl xls. [Be3Al2(Si O3)6]
 Locality







Pingwu beryl mine
Huya W-Sn-Be deposit;
(Xuebaoding W-Sn-Be deposit)
Huya township,
Mt Xuebaoding
Pingwu County
Mianyang Prefecture
Sichuan Province, China
 Size: 7.8 x 7.1 x 4.0 cm
 BMC Purchase
Beryl Crystal System: hexagonal
Physical Properties
 Transparency: transparent, translucent
 Mohs hardness: 7.5 to 8
 Density: 2.63 - 2.9 gm/cm3
 Streak: white
 Luster: Vitreous, Resinous
Photograph by Mike Haritos
Plumbogummite [PbAl3(PO4)2(OH)5•(H2O)]
 Locality





Yangshuo Mine
Yangshuo County
Guilin Prefecture
Guangxi Zhuang
Autonomous Region
China
 Size: 5.0 x 4.0 x 2.7 cm
 Donated by Bill
Metropolis
Crystal System: hexagonal
Physical Properties
 Transparency: opaque, translucent
 Mohs hardness: 4 to 5
 Density: 4 to 5 gm/cm3
 Streak: white
 Luster: greasy
Photograph by Mike Haritos