conditions 
LEA e e en heated to 150° it loses two molecules of 
oli a Sane orthorhombic. It regains its original con- 
E o of the ce the action of the atmosphere. This pe- 
Be duc partly t reasberg heulandite is supposed by Rinne 
y to the large amount of strontium it contains, 
j: tutile needles . 
O a tint: imbedded in the graphite. This, says Sandberger, 
apati ndication that the latter mineral was for A efi yc 
i sition. He examines 
to poss (Zillerthal) and finds 
e ` es ’ 
ss the ideal composition of talc. Cathrein also de- 
€ garne | arnet after gehlenite. 
Pot Eo Paesomotpes here described are the first known 
cin and Ja pseudomorphic origin of garnet. According to 
ll nnasch,* the /manite (NiSbS) crystals from Lol- 
; re neb. f. Min., etc., 1887, ii. p- 39- 2 Ib., p- 12. 
tM Petro. Mitth., viii, 1887, P pa 
€ Jahrb. f. Min., etc., 1887, ii. p. 169. 
