Tincalconite Gallery

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Tincalconite : Na₂[B₄O₇] · 5H₂O
	Tibet Autonomous Region, China Tincalconite crystals pseudomorphs after Borax. The crystals are from the collection of the British Museum of Natural History #31762 (1975). Tebet was the only locality given. The scale at the bottom of the image is an inch with a rule at one cm.
	Photo ID: 237311 View Count: 47
Tincalconite : Na₂[B₄O₇] · 5H₂O
	Boron, Kramer District, Kern Co., California, USA Pristine white tincalconite pseudomorph after a single borax crystal. Brilliant white color. No damage. Overall size of mineral specimen: 30x14x5 mm. Size of individual crystals: 30 mm.
© 2002 John H. Betts	Photo ID: 6563 View Count: 629
Tincalconite : Na₂[B₄O₇] · 5H₂O
	Boron, Kramer District, Kern Co., California, USA Pristine white tincalconite pseudomorph after a single borax crystal (Note: usually, there is only a thin tincalconite layer near the surface). Has an odd, v-shaped termination (twinned?). Brilliant white color (Note: more likely, dull white). No damage. Overall size of mineral specimen: 42x18x8 mm. Size of individual crystals: 42 mm.
© 2002 John H. Betts	Photo ID: 6565 View Count: 384
Tincalconite : Na₂[B₄O₇] · 5H₂O
	Boron, Kramer District, Kern Co., California, USA Pristine white tincalconite pseudomorph after a single borax crystal. Brilliant white color. No damage. Overall size of mineral specimen: 32x11x6 mm. Size of individual crystals: 32 mm.
© 2002 John H. Betts	Photo ID: 6562 View Count: 383
Tincalconite : Na₂[B₄O₇] · 5H₂O
	Boron, Kramer District, Kern Co., California, USA Pristine white tincalconite pseudomorph after a single borax crystal. Brilliant white color. No damage. Overall size of mineral specimen: 26x7x4 mm. Size of individual crystals: 26 mm.
© 2002 John H. Betts	Photo ID: 6564 View Count: 344
Tincalconite : Na₂[B₄O₇] · 5H₂O
	Boron, Kramer District, Kern Co., California, USA Crystal with 5x1,5x1,5cm - March of 1998
© Martins da Pedra	Photo ID: 50480 View Count: 299
Tincalconite : Na₂[B₄O₇] · 5H₂O
	Boron, Kramer District, Kern Co., California, USA White tincalconite pseudomorph after borax from Boron, Kramer District, Kern County, California. Grouping is 2.6cm by 2.4cm and in the collection of J. Nemitz.
© J. Nemitz	Photo ID: 234262 View Count: 23
Tincalconite : Na₂[B₄O₇] · 5H₂O, Borax : Na₂[B₄O₇] · 10H₂O
	U.S. Borax Mine (Pacific West Coast Borax Mine; Pacific Coast Borax Co. Mine; Boron Mine; U.S. Borax and Chemical Corp. Mine; Kramer Mine; Baker Mine), Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA 9.4 x 4.0 x 2.8 cm. A striking, very lightweight plate of a forest of tannish-white pseudomorphs of tincalconite after sharp, spiky, tabular borax crystals from the U.S Borax Mine of California. This is a highly representative specimen of this rare and very unusual pseudomorph. Excellent material from this famous district. They are so lightweight ...
© Rob Lavinsky	Photo ID: 261775 View Count: 9
Tincalconite : Na₂[B₄O₇] · 5H₂O
	Baker mine, U.S. Borax Mine (Pacific West Coast Borax Mine; Pacific Coast Borax Co. Mine; Boron Mine; U.S. Borax and Chemical Corp. Mine; Kramer Mine; Baker Mine), Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA FOV 30 mm. White tincalconite pseudomorph after borax.
© JEFS	Photo ID: 96803 View Count: 198
Tincalconite : Na₂[B₄O₇] · 5H₂O, Borax : Na₂[B₄O₇] · 10H₂O
	Baker mine, U.S. Borax Mine (Pacific West Coast Borax Mine; Pacific Coast Borax Co. Mine; Boron Mine; U.S. Borax and Chemical Corp. Mine; Kramer Mine; Baker Mine), Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA Borax crystals altering to Tincalconite. R. Currier collection. White to pale amber colored borax crystals grow in sumps and the bottoms of partially flooded stopes in the old underground workings at Boron. Sometimes the crystals are prismatic like these. Over a period of time they change into white pseudomorphs after Borax. Here the change is ...
	Photo ID: 237309 View Count: 66