| 16btdwis ((OPTICAL CALCITE)), $10 MINIMUM BID, Chihuahua, Mexico, 4.5 x 3.5 x 3 cm, Miniature | |
 | Here is an excellent cleaved colorless rhomb showing Calcite's optical property of double refraction. |
 |
<-- (BACK TO HOMEPAGE)
HOMEPAGE IS WHERE YOU CAN GET TO OTHER SECTIONS