Posts Tagged ‘minerals’
Fossils Minerals Rocks
August 28th, 2010 | 
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 Blue Cyanotrichite Crystal Specimen C3629  US $5.00
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 Deep Purple Cubic Fluorite Crystal Specimen C7037 US $10.51
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 Gem Sphalerite CrystalMineral Specimen C5701 US $5.00
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 Pink Rhodochrosite Crystal Specimen AD34011 US $3.00
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 Rough Emerald Crystal Specimen A2427 US $3.00
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 NEW Falcon 10 inch Diamond Rock Saw Blade US $45.00
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 AGATE ROUGHLAPIDARY MATERIALRAW GEMSTONE LAVA ART GEM US $4.99
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 FOSSIL MATRIX TEKTITE FROM ANCIENT MO METEORITE CRATER US $19.99
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 FLOWER QUARTZ FROM SHALE AT OLD MO METEORITE CRATER US $14.99
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Astraeospongia or Jellyfish Cast?
There is a store near my house that sells rocks, minerals and fossils. The owner is very knowledgeable about the fossils, but there is one fossil I'm not sure about. When I first saw the fossil, I thought it was definitely an astraeospongia, but the owner was sure it was a jellyfish cast. The fossil even had the star-shaped spicules. I looked up pictures of jellyfish casts online, but none of them looked remotely like the fossil I saw. Should I trust the word of the owner or my own instincts?
If you can see spicules i would be pretty sure that it is a sponge.
 Coral Stone Decorative Sphere Ball - 4"dia.  |
 Coral Stone Sphere, Collectible Rock / Mineral Sphere - 3"dia. |
 Decorative Fossil Stone Sphere, Large Natural Stone Ball - 5" dia. |
 Fluorescent Blue Hardystonite |
 Fossil Stone Sphere, Decorative Rock / Mineral Sphere - 3"dia. |
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