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GYPSUM

Miscellaneous

• Family: None
• Region: None
• Mined At: Unspecified
• Raw Mineral: Yes
• Generic: No

Notes

(Richard Willis)

Mineral, of the ideal form CaSO₄, 2H₂O with a typical empirical analysis of CaO 32.57%, SO₃ 46.50%, H₂O 29.93% Hardness: 2 Water soluble
Two common forms of gypsum are “plaster of Paris” (the calcinated form) and “alabaster stone” (the crystalline form). Common plaster is basically a mixture of gypsum and lime. see selenite

Authors

• Richard Willis (Owner)

XML

<?xml version="1.0" encoding="UTF-8"?>
<material name="GYPSUM" descrip="" generic="0" rawmineral="1" searchkey="" loi="0.00">
<notes>
<note>Mineral, of the ideal form CaSO&lt;FONT SIZE=2&gt;&lt;SUB&gt;4&lt;/SUB&gt;&lt;/FONT&gt;, 2H&lt;FONT SIZE=2&gt;&lt;SUB&gt;2&lt;/SUB&gt;&lt;/FONT&gt;O with a typical empirical analysis of CaO 32.57%, SO&lt;FONT SIZE=2&gt;&lt;SUB&gt;3&lt;/SUB&gt;&lt;/FONT&gt; 46.50%, H&lt;FONT SIZE=2&gt;&lt;SUB&gt;2&lt;/SUB&gt;&lt;/FONT&gt;O 29.93% Hardness: 2 Water soluble&lt;B&gt;&lt;I&gt;&lt;BR&gt;
&lt;/I&gt;&lt;/B&gt;Two common forms of gypsum are &amp;#147;plaster of Paris&amp;#148; (the calcinated form) and &amp;#147;alabaster stone&amp;#148; (the crystalline form). Common plaster is basically a mixture of gypsum and lime. &lt;FONT SIZE=2&gt;see &lt;B&gt;&lt;I&gt;selenite&lt;/I&gt;&lt;/B&gt;&lt;/FONT&gt;&lt;BR&gt;

</note>
</notes>
</material>

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