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  1. Claudia Zahn @[email protected]

    My all-time favorite!
    The website, mindat_org, describes the term "grape agate" as "a marketing name for a highly botryoidal, amethystine microcrystalline-quartz/chalcedony from Indonesia." It is a form of quartz. The field of view is 21mm.
    By Ed Middlebrook
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #Nature #NatureLovers #NaturePhotography #Photographer #RockPorn

    #geology #geologypage #nature #minerals #crystals #gems
  2. Claudia Zahn @[email protected]

    A well-formed, clear, and colorless fluorite crystal enclosing a scalenohedral calcite crystal. The fluorite displays lustrous, completely natural faces, with an elongated cubic habit modified by dodecahedral faces. This unusual little specimen comes from #Spain and measures 2.5 x 2 x 2 cm - László Kupi collection.
    By #FineMineralPhotography
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #Nature #NatureLovers #NaturePhotography #Photographer #RockPorn

    #spain #finemineralphotography #geology #geologypage #nature #minerals
  3. Claudia Zahn @[email protected]

    #Cavansite on #Stilbite
    #India
    8.8 × 6.5 × 5.3 cm
    Photo by Fine Mineral Photography
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #cavansite #stilbite #india #geologicalwonderstoo #geology #geologypage
  4. Claudia Zahn @[email protected]

    #Calcite on bicolour #Fluorite
    Illinois, #USA
    9.5 cm
    Photo by Anton Watzl
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #calcite #fluorite #usa #geologicalwonderstoo #geology #geologypage
  5. Claudia Zahn @[email protected]

    #Vanadinite on #Psilomelane
    #Morocco
    Photo by Andreas Schmid
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #vanadinite #psilomelane #morocco #geologicalwonderstoo #geology #geologypage
  6. Claudia Zahn @[email protected]

    #Amethyst on Smoky #Quartz
    #Greece
    7.5 cm tall
    Photo by Albert Russ

    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #amethyst #quartz #greece #geologicalwonderstoo #geology #geologypage
  7. Claudia Zahn @[email protected]

    #Smithsonite
    Namibia
    8cm high
    Photo by Jeffrey Scovil

    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #smithsonite #geologicalwonderstoo #geology #geologypage #nature #minerals
  8. Claudia Zahn @[email protected]

    #BERYL var. #aquamarine on #albite. Skardu District, Baltistan, Gilgit-Baltistan, #Pakistan. Left crystal is 17mm.
    By #GeologicalWondersToo / Ed Middlebrook
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #beryl #aquamarine #albite #pakistan #geologicalwonderstoo #geology
  9. Claudia Zahn @[email protected]

    #QUARTZ var. #chalcedony. Mamuju Area, Sulawesi Barat Province, Sulawesi, #indonesia Individual crystals are 5mm. Specimen is 49mm x 25mm.
    By #GeologicalWondersToo / Ed Middlebrook
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #quartz #chalcedony #indonesia #geologicalwonderstoo #geology #geologypage
  10. Claudia Zahn @[email protected]

    #Baryte
    #Morocco
    8x7cm
    Photo by Fine Mineral Photography
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #baryte #morocco #geologicalwonderstoo #geology #geologypage #nature
  11. Claudia Zahn @[email protected]

    #Dioptase
    Republic of the #Congo
    5.5 cm
    Photo by Antoine Barthélemy
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #dioptase #congo #geologicalwonderstoo #geology #geologypage #nature
  12. Claudia Zahn @[email protected]

    #Calcite
    #China
    Dimensions 4.5 x 4 x 3 cm
    Photo by Fabian Wildfang
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #calcite #china #geologicalwonderstoo #geology #geologypage #nature
  13. Claudia Zahn @[email protected]

    Fluorite with Chalcopyrite
    IL. USA
    5.4 cm
    Photo by Kiyoshi Kiikuni
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #geologicalwonderstoo #geology #geologypage #nature #minerals #crystals
  14. Claudia Zahn @[email protected]

    #Chalcedony
    #Morocco
    20.5 cm across
    Photo by Albert Russ
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #chalcedony #morocco #geologicalwonderstoo #geology #geologypage #nature
  15. Claudia Zahn @[email protected]

    Cuprian #Adamite
    #Namibia
    5.8cm high
    Photo by Jeffrey A. Scovil
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #adamite #namibia #geologicalwonderstoo #geology #geologypage #nature
  16. Claudia Zahn @[email protected]

    #Fluorite
    #China
    5.5cm
    Photo by Mineral Masterpiece
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #fluorite #china #geologicalwonderstoo #geology #geologypage #nature
  17. Claudia Zahn @[email protected]

    #Azurite
    #Mexico
    4.0 x 2.0 x 1.2 cm
    Photo by Matthew Parshchikov
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #azurite #mexico #geologicalwonderstoo #geology #geologypage #nature
  18. Claudia Zahn @[email protected]

    #Fluorite with fine #Hedenbergite inclusions
    #China
    12.9x11.7x10.1cm
    Photo by Fine Mineral Photography
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #fluorite #hedenbergite #china #geologicalwonderstoo #geology #geologypage
  19. Claudia Zahn @[email protected]

    #Wulfenite
    #Mexico
    2.10 by 1.5 cm
    Photo by Niels Brouwer
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #wulfenite #mexico #geologicalwonderstoo #geology #geologypage #nature
  20. Claudia Zahn @[email protected]

    A titan from #Congo! The sheer scale of this colossal Malachite specimen is simply breathtaking. It showcases a massive and complex botryoidal formation, with those vibrant, deep green pillars on the left contrasting against the smaller, bubble-like mounds on the right. A true museum-quality showpiece of natural artistry! 💎🌿
    📸 Credit: @cornerstoneminerals
    By #GemSpectrum
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #Nature #NatureLovers #NaturePhotography #Photographer #RockPorn

    #congo #gemspectrum #geology #geologypage #nature #minerals
  21. Claudia Zahn @[email protected]

    #Selenite on #Halite from #Germany
    Clear gypsum crystals, usually referred to as selenite, resting on crystalline halite matrix. Under shortwave UV light the halite fluoresces bright orange, while the gypsum fluoresces ethereal blue.
    From the Bleicherode Potash Works, Thuringia, Germany.
    Large cabinet piece at 13 x 11 x 6 cm, 242.5 g.
    By #FluorescentMinerals
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #selenite #halite #germany #fluorescentminerals #geology #geologypage
  22. Claudia Zahn @[email protected]

    #Spessartine #Garnet, #Quartz, #Microcline #Feldspar
    #China
    11.5x7x6.25cm
    Photo by Tomer Shapira
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #spessartine #garnet #quartz #microcline #feldspar #china
  23. Claudia Zahn @[email protected]

    #Calcite “Flowers”
    #Brazil
    20cm
    Photo by Thomas Spann
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #calcite #brazil #geologicalwonderstoo #geology #geologypage #nature
  24. Claudia Zahn @[email protected]

    #Vanadinite
    #Morocco
    Width ca. 12 cm
    Photo by Roger Lang
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #vanadinite #morocco #geologicalwonderstoo #geology #geologypage #nature
  25. Claudia Zahn @[email protected]

    #Fluorite
    #Germany
    10.1cm
    Photo by Mineral Masterpiece
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #fluorite #germany #geologicalwonderstoo #geology #geologypage #nature
  26. Claudia Zahn @[email protected]

    #Rutile, #Hematite
    #Brazil
    5.5 x3.5 x 3 cm
    Photo by Xiao-Dong Xu
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #rutile #hematite #brazil #geologicalwonderstoo #geology #geologypage
  27. Claudia Zahn @[email protected]

    #Calcite on #Stilbite
    Pinnacle Island, Nova Scotia, #Canada
    2.5cm across
    Photo by Josh March
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #calcite #stilbite #canada #geologicalwonderstoo #geology #geologypage
  28. Claudia Zahn @[email protected]

    #Calcite, #Dolomite spheres resting on matrix consisting of tan crystalline dolomite and #quartz
    #Slovakia
    10 x 7 cm
    Photo by László Kupi
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #NatureLovers #NaturePhotography #Photographer #RockPorn

    #calcite #dolomite #quartz #slovakia #geologicalwonderstoo #geology
  29. Claudia Zahn @[email protected]

    #Calcite with #Marcasite inclusions
    Indiana, #USA
    5.2x4.4x3.3cm
    Photo by Tomer Shapira
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #Nature #NatureLovers #NaturePhotography #Photographer #RockPorn

    #calcite #marcasite #usa #geologicalwonderstoo #geology #geologypage
  30. Claudia Zahn @[email protected]

    Cobaltoan #Calcite
    #Congo
    3.1 cm
    Photo by Kyoshi Kikuni
    By #GeologicalWondersToo / Karen Kemp
    #Geology #GeologyPage #Nature #Minerals #Crystals #Gems #Nature #NatureLovers #NaturePhotography #Photographer #RockPorn

    #calcite #congo #geologicalwonderstoo #geology #geologypage #nature
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