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Stibiotantalite : Sb(Ta,Nb)O4, Elbaite : [Na][(Li,Al)3][Al6][(OH)3|OH|(BO3)3|Si6O18] | |
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Himalaya Mine (Himalaya pegmatite; Himalaya dikes), Gem Hill, Mesa Grande District, San Diego Co., California, USA Stibiotantalite crystal group, 3.5 cm tall, with associated elbaite, from the Himalaya Mine, Mesa Grande, San Diego County, California. |
| © 2009, Jesse Fisher | Photo ID: 2857 View Count: 801 |
Stibiotantalite : Sb(Ta,Nb)O4, Tourmaline : AD3G6(BO3)3[T6O18]Y3Z | |
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Himalaya Mine (Himalaya pegmatite; Himalaya dikes), Gem Hill, Mesa Grande District, San Diego Co., California, USA This is a gorgeous, very glassy, deep red tourmaline crystal in its own right. However, more than that, it is a unsique specimen as it features wonderful, translucent-to-transparent lustrous brown crystals of Stibiotantalite literally perched ATOP the termination! The piece is striking for gemoetry and color contrast aside from the rarity. ... |
| © Rob Lavinsky | Photo ID: 20398 View Count: 378 |
Stibiotantalite : Sb(Ta,Nb)O4, Tourmaline : AD3G6(BO3)3[T6O18]Y3Z, Lepidolite : K(Li,Al)3(Si,Al)4O10(F,OH)2 | |
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Himalaya Mine (Himalaya pegmatite; Himalaya dikes), Gem Hill, Mesa Grande District, San Diego Co., California, USA A showy and excellent combination piece from the famous Himalaya Mine of RARE, transparent, clove-brown stibiotantalite blades to 5 mm on very gemmy and lustrous, watermelon-pink tourmaline crystals to 3.8 cm with pink lepidolite and albite. Ex Chris Korpi Collection. 6.3 x 5.2 x 4.2 cm |
| © Rob Lavinsky | Photo ID: 48268 View Count: 226 |
Stibiotantalite : Sb(Ta,Nb)O4 | |
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Himalaya Mine (Himalaya pegmatite; Himalaya dikes), Gem Hill, Mesa Grande District, San Diego Co., California, USA A natural dark brownish black stibiotantalite with good tabular form and basal termination; from the Himalaya mine, Gem Hill, Mesa Grande, San Diego County, California, USA. Specimen measures approximately 25x12x5mm. Courtesy Pala International. |
| © 2003 SLR | Photo ID: 138550 View Count: 115 |
Stibiotantalite : Sb(Ta,Nb)O4, Quartz : SiO2 | |
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Himalaya Mine (Himalaya pegmatite; Himalaya dikes), Gem Hill, Mesa Grande District, San Diego Co., California, USA 4.2 x 2.2 x 1.7 cm. Stibiotantalite is a rare, rare-earth oxide and is very uncommon from the Himalaya Mine. This is a particularly rare specimen of brown stibiotantalite feathers richly included in a complete-all-around and pristine, water-clear quartz crystal set in feldspar matrix. Ex. Chuck Houser Collection. |
| © Rob Lavinsky | Photo ID: 230577 View Count: 21 |
Stibiotantalite : Sb(Ta,Nb)O4 | |
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Himalaya Mine (Himalaya pegmatite; Himalaya dikes), Gem Hill, Mesa Grande District, San Diego Co., California, USA 3.2 x 2.1 x 0.6 cm. This perfect, equant, textbook-quality crystal is a very significant example of this rare species for San Diego, of which few better exist. I recall the handwringing it caused when Chuck traded this from Irv Brown in the mid-1990s. By any standard, this is a beautiful example of the species from any US locale. Ex. Chuck Houser ... |
| © Rob Lavinsky | Photo ID: 259972 View Count: 19 |
Stibiotantalite : Sb(Ta,Nb)O4 | |
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Himalaya Mine (Himalaya pegmatite; Himalaya dikes), Gem Hill, Mesa Grande District, San Diego Co., California, USA 1.8 x 1.5 x 0.1 cm. Stibiotantalite is a very uncommon species in this pegmatite, and these orange-red gem crystals are always highly treasured among collectors there. This is a fine thumbnail for sharpness, condition, color, and obvious gemmy transparency. Ex. William Larson Collection. |
| © Rob Lavinsky | Photo ID: 259794 View Count: 11 |
Stibiotantalite : Sb(Ta,Nb)O4 | |
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Himalaya Mine (Himalaya pegmatite; Himalaya dikes), Gem Hill, Mesa Grande District, San Diego Co., California, USA 2.6 x 1.2 x 0.6 cm. Stibiotantalite is a very uncommon species in this pegmatite, and this is a very robust crystal for the locale (most are rather slender). Ex. William Larson Collection. |
| © Rob Lavinsky | Photo ID: 259818 View Count: 9 |
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