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thomsonite |
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thomsonite [′täm·sə‚nīt]
(mineralogy) NaCa2Al5Si5O20·6H2O Snow-white zeolite mineral forming orthorhombic crystals and occurring in masses of radiating crystals; hardness is 5-5.5 on Mohs scale. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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