GRANITE
Miscellaneous
- Family: None
- Region: None
- Mined At: Unspecified
- Raw Mineral: Yes
- Generic: No
Notes
(Richard Willis)
Plutonic rock, essentially of plagioclase feldspars and quartz, with biotite, muscovite, hornblende, pyroxene, tourmaline, etc. The mother-rock of feldspars and quartz. Among feldspathics, granites are resembled most by the pegmatites. Formed by fusion of sedimentaries as a final phase of metamorphosis of young magma. Numerous varieties. It has been said that if obsidian’s constituents were unvitrified they would be a granite clay, and, conversely, if granite were vitrified it would be obsidian: to thi
s thinking, granite could also be called “obsidian clay”.
Authors
- Richard Willis (Owner)
Pictures
-
Granite Blue Box
XML
<?xml version="1.0" encoding="UTF-8"?>
<material name="GRANITE" descrip="" generic="0" rawmineral="1" searchkey="" loi="0.00">
<notes>
<note>Plutonic rock, essentially of plagioclase feldspars and quartz, with biotite, muscovite, hornblende, pyroxene, tourmaline, etc. The mother-rock of feldspars and quartz. Among feldspathics, granites are resembled most by the pegmatites. Formed by fusion of sedimentaries as a final phase of metamorphosis of young magma. Numerous varieties. It has been said that if obsidian&#146;s constituents were unvitrified they would be a granite clay, and, conversely, if granite were vitrified it would be obsidian: to thi
s thinking, granite could also be called &#147;obsidian clay&#148;.<BR>
</note>
</notes>
<pictures>
<picture description="Granite Blue Box" filename="granite_blue_box_.jpg"/>
</pictures>
</material>
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