Goosecreekite
Goosecreekite is one of the rarest of this Zeolite band of minerals that includes over 40 minerals and these minerals which are gem-type Analcime, Barrerite, Chabazite, Epistilbite, Gmelinite-Na, Goosecreekite, Mordenite, Natrolite, Pollucite, Scolecite, Stellerite, Stilbite, Thomsonite and Yugawaralite. Goosecreekite is amongst the many unusually called minerals. It really is named after the New Goose Creek Quarry in Loudoun County, Virginia, United States Of America. Goosecreekite is found in the vesicles or bubbles of volcanic stone as are most other Zeolites. Goosecreekite is definitely a unusual mineral and very unusual as being a gem that is faceted.
Goosecreekite is found in only three locations: the kind locality at the New Goose Creek Quarry, Leesburg, Loudoun County, Virginia, USA; exceptional crystals are observed at the Pandulena Quarry, Nasik, Maharashtra, Asia; and the OberbaumÄuhle Quarry, Windischeschenbach, Bavaria, Germany.
| Chemical Formula: | CaAl2Si6O16 · 5(H2O) | ||||||||||||||||||||||||||||||
| Hydrated Calcium Aluminum Silicate | |||||||||||||||||||||||||||||||
| Molecular Weight: | 608.62 gm | ||||||||||||||||||||||||||||||
| Composition: |
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| Crystallography: | Monoclinic – Sphenoidal |
| Crystal Habit: | As equant euhedral crystals, highly curved, to 4 cm; in polycrystalline aggregates. |
| Twinning: | None |
| Cleavage: | [010] Perfect |
| Fracture: | Irregular/Uneven |
| Tenacity: | Brittle |
| Moh’s Hardness: | 4.5 |
| Density: | 2.21 (g/cm3) |
| Luminescence: | None |
| Radioactivity: | Not Radioactive |
| Color: | Colorless, White |
| Transparency: | Transparent |
| Luster: | Vitreous to Pearly on crystal faces |
| Refractive Index: | 1.495 – 1.502 Biaxial ( – ) |
| Birefringence: | 0.007 |
| Dispersion: | Relatively Weak |
| Pleochroism: | None |
