Bohseite

#57745

Availability: Available
Price: $75.00

Locality: Ermakovskoe Be deposit, Buryatia, Siberia, Russia
Formula: Ca₄Be₃AlSi₉O₂₅(OH)₃
Size: 1.1 x 0.8 x 0.5 cm - Thumbnail
Tagged: beryllium

Bohseite is a rare beryllium mineral found at only 7 localities worldwide. This specimen is yellow and compact fibrous. It is from the private stock of Dr. Igor Pekov, who performed the analysis.

Bohseite at Dakota Matrix Bohseite at WebMineral Bohseite at MinDat

Breithauptite

#7908

SOLD

Availability: Sold

Featured: Featured in Special Editions
Locality: Cobalt-Gowganda dist., Ontario, Canada
Formula: NiSb
Size: 7.5 x 4.5 x 3.5 cm - Sm Cabinet

A rich mass of Breithauptite from the Cobalt district of Ontario showing veinlets and rosette-like growth habits.

Breithauptite at Dakota Matrix Breithauptite at WebMineral Breithauptite at MinDat

Bystrite with Lazurite

#BAC61527

SOLD

Availability: Sold

Locality: Malaya Bystraya deposit, Tunka Valley, Baikal area, Siberia, Russia
Formula: (Na,K,Ca)₈(Si₆Al₆)O₂₄S_1.5·H₂O
Size: 4 x 1.5 x 1 cm - Miniature
Special Info: Type & Only Locality

Yellow anhedral crystal grains of Bystrite, the chloride analogue of Sulfhydrylbystrite and a rare member of the Cancrinite group. It is associated with deep blue Lazurite. It is sawed on one side probably for analytical purposes. Very nice and colorful specimen of this rare species found only at this locality. You probably won't see another one of these.

Bystrite at Dakota Matrix Bystrite at WebMineral Bystrite at MinDat

Cabalzarite

#BAC61610

Availability: Available
Price: $95.00

Locality: Falotta, Tinzen, Sursass, Graubünden, Switzerland
Formula: CaMg₂(AsO₄)₂·2H₂O
Size: 1.3 x 0.9 x 0.8 cm - Thumbnail
Special Info: Type Locality

Salmon pink platy crystals in 1mm and less groups. Cabalzarite is a rare arsenate found in only three worldwide localities. On this specimen the crystals are on two sides.

Cabalzarite at Dakota Matrix Cabalzarite at WebMineral Cabalzarite at MinDat