Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.40-2.424.95-5.0
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
{010} Perfect, {001} Distinct
Imperfect to indistinct on {10 1 0}, parting on {0001}
Mohs Hardness
4.54-5
2
10
👆🏻
Chemical Composition
Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ce,La)(CO 3)FMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references