To address lighting's affects on gemstones, most pages feature a main photo in natural daylight or daylight-mimicking light, a photo with incandescent (indoor) lighting, and a tweezer inspection video. Demos of special properties as well as photo micrographs are present when relevant.
$ 250.00 USD
Peruvian Stromatolites
A stromatolite slab from Peru, 9.5 by 5 cm, estimated at 2 billion years plus. Stromatolites are the earliest organisms of Earth to appear in the fossil record, the oldest being 3.4 billion.
5.0 x 9.5 cm
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