January 29, 2018

 

 Minerals K ~ Z

Thumbnail specimens - micro / macro crystals

Small cabinet pieces + matrix pieces

 

KOPPITE (variety of PYROCHLORE)
Oberg-Badberg area, Schelingen, Kaiserstuhl, Baden-Württemberg, Germany This mineral is a Ce bearing variety of Pyrochlore. It occurs as black octahedral and modified octahedra on and in grey Calcite with reddish-brown octahedra crystals. $15.00    81
LAZULITE
Graves Mountain, Lincoln County, Georgia, USA Pretty matrix pieces with light bluish-gray crystals on matrix.    $10.00

 (Mg,Fe2+)Al2(PO4)2(OH)2

671
MACDONALDITE
Esquire No. 7 claim, Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno County, California, USA Type locality! One only of this rare mineral! Silky white to colourless bladed to acicular crystals on matrix. $15.00  

BaCa4Si16O36(OH)2 · 10H2O

318
PHOSPHOHEDYPHANE

Wanlock Dod-Whytes Cleuch, Wanlockhead, Dumfries & Galloway, Scotland, United Kingdom One only of this very pretty piece as light green to white crystals forming botryoids on matrix.    $10.00

Ca2Pb3(PO4)3Cl

44
POSTITE
Blue Cap Mine (Black Hat X), La Sal Creek Canyon, Paradox Valley District, San Juan County, Utah, USA Type locality! An extremely rare vanadate - IMA 2011-060. Highly lustrous bright orangey-yellow stubby to elongated crystals forming clusters on matrix. 3 x $50.00; 3 x $60.00; 3 x $75.00; 1 x $80.00  Very. very fine pieces with good to rich coverage!! 

Mg(H2O)6Al2(OH)2(H2O)8(V10O28)·13H2O

1998
QUARTZ variety AMETHYST

A

BC

Piedra Parada, Municipio de Tatatila, Veracruz, Mexico Absolutely beautiful pieces from this famous location as highly lustrous vitreous transparent bi-coloured (colourless to deep purple) prismatic crystals on matrix. Just amazing pieces! $15.00

SiO2

DEF

670
QUARTZ variety AMETHYST
AB 

CD

Cerro De La Concordia, Piedra Parada, Municipio de Tatatila, Veracruz, Mexico Four only of these very fine pieces! Highly lustrous gemmy very  pale transparent lilac Amethyst from this wonderful locale with Laumontite on matrix - A) 6.0 x 5.7 cm; B) 7.0 x 4.0 cm; C) 7.0 x 6.0 cm; D) 6.0 x 6.0 cm $25.00  

SiO2

Small cabinet pieces!

98510
SCHODERITE
VanNavSan Claim, Fish Creek Range, Gibellini District, Eureka Co., Nevada, USA Type locality! A very rare vanadate - bright yellow to yellow-orange (30x) crystals and sprays on matrix. 2 x $10.00; 1 x $12.00; 1 x $15.00  

Al2(PO4)(VO4) · 8H2O

407
SCORZALITE
Champion Mine, White Mountain, Laws, White Mountains, Inyo County, California, USA Aggregates of dark blue vitreous to pale blue chalky crudely crystalline Scorzalite in matrix.    $10.00

 Fe2+Al2(PO4)2(OH)2

675
SERENDIBITE
 
Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Division, Myanmar One only - A very rare mineral! Chunks of very deep blue to black obsidian-like material. $15.00

 Ca4[Mg6Al6]O4[Si6B3Al3O36]

75
SINHALITE
Edenville, Town of Warwick, Orange County, New York, USA A very rare but aesthetically challenged mineral! At least "1" crystal on each piece or as creamy beige to yellowish-brown crystalline areas in matrix. From the E. Henkel Collection    $10.00

MgAl(BO4)

584
SMITHSONITE
Mammoth-St. Anthony Mine, St. Anthony Deposit, Tiger, Mammoth District, Pinal County, Arizona, USA One only - A very fine example of this mineral - vitreous pale blue-green crystal groups.     $10.00

ZnCO3

313
SPHALERITE
 
Milltown Quarry, Milltown, Ashover, Derbyshire, England, United Kingdom Very fine specimens as dark reddish-brown to almost orange crystals on matrix with phantom colourless Fluorite, Smithsonite.    $10.00

ZnS

157
TANGEITE
Monument Valley, Navajo Indian Reservation, Navajo County, Arizona, USA Very fine pieces with highly lustrous bright greenish-yellow very thin tabular octahedra crystals on matrix.   $10.00

CaCu(VO4)(OH)

415
'THOMSONITE' / ANALCIME
Papenoo valley, Papenoo, Tahiti, Windward Islands, French Polynesia One only - Very fine pieces! Silky white to grey-white Thomsonite crystals with water-clear Analcime crystals.     $10.00 876
USHKOVITE
Lavra de Eduardo, Galiléia, Doce Valley, Minas Gerais, Southeast Region, Brazil Very good phosphate combination pieces with pale yellow to orangey-yellow flattened triclinic crystals on Albite +/- Leucophosphite, Cyrilovite and Frondelite on Albite. $10.00; $20.00  

MgFe3+2(PO4)2(OH)2·8H2O

757
ZANAZZIITE
Jenipapo District, Itinga, Jequitinhonha Valley, Minas Gerais, Brazil Very fine pieces of this rarity! Clusters of very pale pink to light cream coloured glassy crystals on Muscovite.   $12.00

Ca2Mg5Be4(PO4)6(OH)4 · 6H2O

731
       
 

A-H     K-Z
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