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{{Wikipedia|Jade}} | {{Wikipedia|Jade}} | ||
'''Jade''' is applied to two different rocks that are made up of different silicate minerals. Nephrite jade consists of the calcium- and magnesium-rich amphibole mineral actinolite (aggregates of which also make up one form of asbestos). The rock called jadeitite consists almost entirely of jadeite, a sodium- and aluminum-rich pyroxene. The trade name Jadite is sometimes applied to translucent/opaque green glass | |||
'''Jade''' is applied to two different rocks that are made up of different silicate minerals. Nephrite jade consists of the calcium- and magnesium-rich amphibole mineral actinolite (aggregates of which also make up one form of asbestos). The rock called jadeitite consists almost entirely of jadeite, a sodium- and aluminum-rich pyroxene. The trade name Jadite is sometimes applied to translucent/opaque green glass. | |||
Nephrite and jadeite were used by people from the prehistoric for similar purposes. Both are about the same hardness as [[quartz]], and they are exceptionally tough. They are beautifully colored and can be delicately shaped. | Nephrite and jadeite were used by people from the prehistoric for similar purposes. Both are about the same hardness as [[quartz]], and they are exceptionally tough. They are beautifully colored and can be delicately shaped. | ||
Polished jade represents the [[Age of Reconciliation|Ages of Reconciliation]].<ref> | Polished jade represents the [[Age of Reconciliation|Ages of Reconciliation]].<ref>''[[Halo: Contact Harvest]]'', Chapter 12</ref> | ||
==Sources== | ==Sources== | ||
{{Ref/Sources}} | |||
[[Category:Materials]] | [[Category:Materials]] | ||
[[Category:Geology]] | [[Category:Geology]] | ||