











Mineral Specimen and Product Inventory Search
- Availability
- Available
- Price
- $45.00
- Locality
- Swanson mine, Middlesex Co., Connecticut, United States
- Formula
- NaAlSi3O8
- Size
- 7.5 x 6 x 5 cm - Sm Cabinet
- Tagged
- pegmatite mineral
Cut section of pegmatite rock showing the swirling nature of yellow Albite, variety cleavelandite. Also present is smoky Quartz and Muscovite .
- Availability
- Available
- Price
- $35.00
- Locality
- Piracicaba mine, Minas Gerais, Brazil
- Formula
- Be3Al2Si6O18
- Size
- 2.6 x 1 x 1 cm - Thumbnail
- Tagged
- beryllium, pegmatite mineral
A stubby light green terminated crystal.
- Availability
- Sold
- Locality
- Etta mine, Pennington Co., South Dakota, United States
- Formula
- Fe2+Nb2O6
- Size
- 5.5 x 5.5 x 1.2 cm - Sm Cabinet
- Tagged
- pegmatite mineral
Thick tabular, heavily striated crystal of black Columbite. Faces on front and back, but not the sides.
- Availability
- Available
- Price
- $40.00
- Locality
- Etta mine, Pennington Co., South Dakota, United States
- Formula
- Fe2+Nb2O6
- Size
- 3.6 x 2.5 x 1.2 cm - Miniature
- Tagged
- pegmatite mineral
Tabular crystal with faces front and back and a few on the sides.
- Availability
- Sold
- Locality
- Etta mine, Pennington Co., South Dakota, United States
- Formula
- Fe2+Nb2O6
- Size
- 5 x 2.5 x 1.5 cm - Miniature
- Tagged
- pegmatite mineral
A partial section of a large Columbite crystal with characteristic striations. There are three crystal faces.
- Availability
- Sold
- Locality
- Alto Ligonha dist., Zambezia prov., Mozambique
- Formula
- Fe2+Nb2O6
- Size
- 4.2 x 2 x 0.5 cm - Miniature
- Tagged
- pegmatite mineral
A single complete crystal, terminated with deep, typical, striations.