Whewellite
Whewelliet, Whewellit, Whewellita, Уэвеллит, 水草酸鈣石, ｳｪｳｪﾙﾗｲﾄ
Commonly known
rarer (so called collectors stones)
very rare (rarities)
relatively rare organic material
|
Formula: CaC2O4·H2O
Mineral class: oxalates Crystal system: monoclinic Mohs scale: 2.5 - 3 Density (g/cm3): 2.21 - 2.23 Refractive index: 1.489 - 1.651 Cleavage: different Colors: colorless, white, light yellow, light brown Transparency: transparent Luster: vitreous Fluorescence: - Pleochroism: - Largest crystal: 23 cm? Deposits: worldwide Discovery: pre 1840? 1st Description: 1840 (Brooke) Name: in honor of the British mineralogist William Whewell (1794 - 1866) |
|
Whewellite Mineral
Size: 0.59 x 0.47 cm Origin: Germany Photo by kind permission of © Darlene Cobler |
 |
|
Whewellite
Weight: 18.15 ct Origin: Saxony / Germany Photo by kind permission of © www.minclassics.com |
 |
|
Whewellite Mineral
Size: 2.9 x 2.8 x 2.3 cm Origin: Bad Schlema / Saxony / Germany Photo by kind permission of © www.irocks.com |
 |
⇐ Intro Page ⇐ Gemstones