Inderite from Pacific Coast Borax Mine, Boron, Kern Co., California © Dakota Matrix Minerals, Inc.

Chemical Formula: MgB3O3(OH)5·5H2O
Locality: Inder Lake, Kazakhstan.
Name Origin: Named after its source.

The inderite is a mineral, a borate hydrate of magnesium , belonging to the group of the same name .

The name comes from Salt Lake Inder , in Kazakhstan .

Described for the first time by AMBoldyreva , Kazakhstan, in 1937.

Physical Properties

Cleavage: {110} Good
Color:    Colorless, White, Pink.
Density: 1.8
Diaphaneity: Transparent
Fracture: Uneven – Flat surfaces (not cleavage) fractured in an uneven pattern..
Hardness: 2.5 – Finger Nail
Luster: Vitreous (Glassy)
Streak: white

Photos :

INDERITE Boron Open Pit, Boron, Kerns County, California 12 x 5 x 3 cm © lehighminerals
Inderite USA California, Kern Co., Kramer District, Boron, U.S. Borax Open Pit Mine, © Rock Currier
Inderite var. Lesserite. Location of mineral deposit: Jenifer Mine, Kramer District, Kern County, California. Overall size of mineral specimen: 29x13x11 mm. Size of individual crystals: 5-29 mm. © John Betts – Fine Minerals,
U.S. Borax open pit (Boron pit), U.S. Borax Mine (Pacific West Coast Borax; Pacific Coast Borax Co.; Boron Mine; U.S. Borax and Chemical Corp.; Kramer Mine; Baker Mine), Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA © Leon Hupperichs