I84t 



Outlines of the Mineralogy anB Geology 



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SYlSrOPTICAL TABLE 



CLASS L— JE^BTflF FOSSILS, 



Not reducible to the metallick state before the blowpipe, nor 



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Yolatilizable. 



Division i. — Infusible before the plowpipe. 



t Field to the knifey do not effervesce 



ORDER L 



SPECIES 



Subspecies 



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11. 



I. — Apatite. Green j in short six-sided prisms, soluble in nitric 



acid. 



tl Soluble ivith effervescence in J^itriclc or Mtiriatick acid. 



Calcareous Spar. White ; crystallized j fragments rhom- 



boidal. 



Var. 1. Crjstalli'zed Calcareous Spar. 

 Var. 2. Laminated Calcareous Spar. 



it.^^Granular Limestone. — White ; grej ; fragments indeter- 

 minately angular, blunt edged ; phosphoresces by heat 



or friction. 



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III. — Fihrous Limestone. Snow white ; fibrous. 



IV. — Compact Limestone. Whitish; fracture fine grained. 



V. 



of 



Wliitish 



tive forms investing other minerals. 



^1. — Broxvn Spar, Crystallized in lenses, and in obtuse rhombs 



ORDER 11. 



XVII.— Pinife. Blackish grey ; glistening and resinous ; in six 



prisms ; fracture uneven and foliated. 



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