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[Content and History] [Recent Issues] [Back Issues] [Subscriptions] [Contacts] See Also: [Diamond Crystals] [Excalibur Minerals] [Hudson Institute] [Minerals on CDROM] Mineral News was founded some twenty years ago and has developed a following of avid mineral collectors seeking timely information about new finds and other items of interest to the collector community. Articles are solicited from collector and scientific authors. |
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Calcite, Quartz
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| Mineral: | Calcite: CaCO3 Quartz: SiO2 | |||||
| Comments: | Purple-colored druse of amethystine quartz and white calcite. | |||||
| Location: | Rio Grande do Sul, Brazil. | |||||
| Scale: | Sample size 20 cm. | |||||
| Copyright: | © Dave Barthelmy | |||||
| Counter: | This Image has been shown 19798 times | |||||
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