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  1. Twin Cavansite Crystals on Heulandite

    Twin Cavansite Crystals on Heulandite

    The finest small cabinet Cavansite twin I have ever seen. Stunning twin Cavansite crystals overgrew the Heulandite on this spectacular piece from the legendary Wagholi Quarries, Pune, Maharashtra, India (2016).
  2. Greg Shchepanek

    Want critique Quartz Crystal Contrast

    Quartz is a chemical compound consisting of one part silicon and two parts oxygen. It is silicon dioxide (SiO2). It is the most abundant mineral found at Earth's surface, and its unique properties make it one of the most useful natural substances. Canon EOS M100 • EF-M28mm f/3.5 MACRO IS STM •...
  3. Greg Shchepanek

    Want critique Red Filter Quartz Crystal

    Jack suggested to try colour lighting so this is my experiment with a red filter on a quartz crystal. Canon EOS M100 • EF-M28mm f/3.5 MACRO IS STM • ƒ/3.5 28.0 mm 1/50 1600 Flash (off, did not fire)
  4. Greg Shchepanek

    Your opinion? Playing with Light on Amethyst

    Amethyst is a purple variety of quartz (SiO2) and owes its violet colour to irradiation, impurities of iron and in some cases other transition metals, and the presence of other trace elements, which result in complex crystal lattice substitutions. Popular for its purple colouring it is used for...
  5. Greg Shchepanek

    Quartz Crystals Contrast

    From my rock collection. Quartz crystal formations on a rock which my Uncle gave to me from one of his Northern Ontario adventures in the wilderness. Canon EOS M100 • EF-M28mm f/3.5 MACRO IS STM • ƒ/4.0 28.0 mm 1/60 500 Flash (off, did not fire)
  6. Greg Shchepanek

    Others Quartz Crystal Formations

    From a very small geode and small formations
  7. Greg Shchepanek

    Others Quartz up Close

    Went in with super macro and with backlighting to get this shot with all the cracks and features
  8. Greg Shchepanek

    Others Quartz Crystal

    Crystal Quartz lighting by Lumintop EDC Flashlight
  9. Greg Shchepanek

    Want critique The Gem Stone: Amethyst

    Jewellery piece of Amethyst polished pendant for necklace.
  10. Greg Shchepanek

    Others Smaller Blueish Amethyst

    Given to me by my best friend who knows I love the rocks:
  11. Greg Shchepanek

    Others Amethyst up Close

    A gift from my Uncle Johnny who use to explore the wilds of Northern Ontario. A true adventurer in his time.
  12. H

    Your opinion? Microminerals

    Hello, i present my work with what i prefer : microminerals
  13. Greg Shchepanek

    Others Amethyst

    A purple or violet quartz, used as a gem.
  14. Greg Shchepanek

    Others Inside a Crystal Geode

    I have a rock collection too, quartz geode using the super macro feature