Tag Archives: quartz

Madagascar: A gemolgist’s journey (Ihasofotsy)

Along the way to the quartz mine, locals in Ihasofotsy set up a mineral show. There were lots of amazing quartz pieces including quartz with fuchsite, quartz with hollandite, rock crystal clusters etc. As we shopped, locals looked on. One … Continue reading

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Madagascar: A Gemologist’s Journey (Drive to Itremo Massive)

Early in the morning, we leave Ambatofinandrahana for the long drive to Itremo Massive, the quartz capital of Madagascar. This area is famous for numerous quartz veins producing an enormous number of quartz specimens each year including rock crystal quartz, … Continue reading

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Madagascar: A Gemologist’s Journey (Ambatofinandrahana)

Ambatofinandrahana is probably my favorite town in Madagascar. This once-thriving town in an area rich in quartz, Beryl-Columbite, Lepidolite, danburite and other minerals, is now in disrepair. Upon our arrival in Abatofinandrahana we were greeted at the boarding house by … Continue reading

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Recap of Quartz Categories

As a little recap to my month-long discussion about quartz, all of the stones you see in this image are all varieties of the gem mineral quartz. The amethyst and citrine cut stones are part of the larger single and … Continue reading

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Microcrystalline Quartz: Tiger’s Eye & Aventurine

The third form of quartz the Sarah briefly touched on is the microcrystalline form that contains very small but not microscopic quartz crystals. Varieties such as quartzite, tiger’s eye and aventurine are microcrystalline aggregates of many small crystals. The image … Continue reading

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Gorgeous Designer-Cut Quartz Crystal Sculpture

Sarah mentioned the different crystal structures of quartz, the smallest being chalcedony and the largest being quartz crystals such as citrine and amethyst. I received an interesting phone call earlier in the summer. Steve had seen my post on the … Continue reading

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Quartz Variety Crystal Sizes

You may already know from previous posts that quartz is one of the most abundant minerals on earth. While all quartz varieties form in the same trigonal crystal structure, and are chemically composed of silicon and oxygen, they differ mainly … Continue reading

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