Earth and Environment Atlas

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Cause

Caused by links an earth material to the physical condition that produces its particular form. Wikipedia notes that quartz shifts between its two crystal forms because "the transformation from alpha-quartz to beta-quartz takes place abruptly at 573 degrees Celsius," heat alone deciding which form exists. This dimension groups materials that share the same underlying physical cause.

Facts
Comparison
Formation Origin
Include the sulfate ion (SO4 2-) within their structure. 1
Cause
Connections

Classifies

Gypsum, Materials
Sources
1. Wikipedia: Sulfate minerals
WikipediaLead section
Quote, Lead section
The sulfate minerals are a class of minerals that include the sulfate ion (SO2-4) within their structure.
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