Unique Mineral Specimen - Large Size Amethyst Sectioned Geode Natural Deep Purple Color - Height: 385 mm - Width: 475 mm- 68200 g - (1)






Holds a master’s in chemistry with 25 years’ experience in minerals consulting.
€100 |
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Large sectioned amethyst geode from Brazil, natural deep purple crystals with macrocrystallization, weighing 68.2 kg and measuring 385 × 475 × 370 mm, stabilised on a sculpted cementitious base and suitable as a decorative sculpture or coffee table with a custom glass top.
Description from the seller
Sectioned Geode with Precious Macrocrystallization — Grande Geode di Ametista Viola – Natural Section on a Sculpted Cementitious Base. An important natural section of first-rate amethyst geode, characterized by well-developed, compact crystals in a deep, saturated violet color. The druse displays mature points with sharp terminations and glossy surfaces, with hues ranging from deep purple to lighter violet along the peripheral zones. The high chromatic concentration is indicative of excellent mineral quality and slow growth in a basaltic environment, where silica-rich solutions and traces of iron allowed the formation of amethyst quartz under stable, prolonged conditions. The crystal surface shows a marked vitreous luster and a sparkling effect clearly visible under direct light. The edge of the section preserves the natural transition between the inner quartz belt and the outer matrix, keeping legible the original morphology of the cavity. The specimen has been stabilized and integrated on a sculpted cementitious base, designed to ensure structural solidity and proper weight distribution. The base, deliberately tactile and irregular, creates a strong aesthetic contrast with the brilliance of the crystals and gives the piece a significant dramatic presence. In terms of size and structure, the piece can also be used as a sculptural decorative element; with the installation of a custom glass panel it can be transformed into a decorative coffee table while keeping the crystal surface fully visible. A piece of great visual impact, suitable for high-level mineral collectors, interior designers, or for contemporary and industrial settings where a natural element of strong character is sought.
Seller's Story
Sectioned Geode with Precious Macrocrystallization — Grande Geode di Ametista Viola – Natural Section on a Sculpted Cementitious Base. An important natural section of first-rate amethyst geode, characterized by well-developed, compact crystals in a deep, saturated violet color. The druse displays mature points with sharp terminations and glossy surfaces, with hues ranging from deep purple to lighter violet along the peripheral zones. The high chromatic concentration is indicative of excellent mineral quality and slow growth in a basaltic environment, where silica-rich solutions and traces of iron allowed the formation of amethyst quartz under stable, prolonged conditions. The crystal surface shows a marked vitreous luster and a sparkling effect clearly visible under direct light. The edge of the section preserves the natural transition between the inner quartz belt and the outer matrix, keeping legible the original morphology of the cavity. The specimen has been stabilized and integrated on a sculpted cementitious base, designed to ensure structural solidity and proper weight distribution. The base, deliberately tactile and irregular, creates a strong aesthetic contrast with the brilliance of the crystals and gives the piece a significant dramatic presence. In terms of size and structure, the piece can also be used as a sculptural decorative element; with the installation of a custom glass panel it can be transformed into a decorative coffee table while keeping the crystal surface fully visible. A piece of great visual impact, suitable for high-level mineral collectors, interior designers, or for contemporary and industrial settings where a natural element of strong character is sought.
Seller's Story
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It is believed that certain gemstones and minerals have beneficial health and spiritual properties. However, using or wearing gemstones or minerals does not mean that you can treat, cure or prevent any disease. Please consult your health care professional for information on health care issues and do not stop any medications or courses of treatment, without first consulting your health care professional. The use of gemstones or minerals as a wellness therapy is one of personal choice. While stones or crystals have been used historically to relieve or prevent symptoms, the objects sold on our website offer no guarantee of results. Therefore, Catawiki cannot guarantee or be held liable for the effectiveness of these objects sold herein.
It is believed that certain gemstones and minerals have beneficial health and spiritual properties. However, using or wearing gemstones or minerals does not mean that you can treat, cure or prevent any disease. Please consult your health care professional for information on health care issues and do not stop any medications or courses of treatment, without first consulting your health care professional. The use of gemstones or minerals as a wellness therapy is one of personal choice. While stones or crystals have been used historically to relieve or prevent symptoms, the objects sold on our website offer no guarantee of results. Therefore, Catawiki cannot guarantee or be held liable for the effectiveness of these objects sold herein.
