Magnificent Deep Violet Brazilian Amethyst Geode - Cathedral Geode - Ntural Deep Purple Crystallization - Height: 292 mm - Width: 215 mm- 8380 g - (1)






Holds a master’s in chemistry with 25 years’ experience in minerals consulting.
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Massive natural cathedral geode of deep purple Brazilian amethyst from Brazil, measuring 292 × 215 × 140 mm and weighing 8,380 g with a crystal‑rich interior.
Description from the seller
Spectacular Natural Crystal Cavity — This specimen offers a fascinating glimpse into the depths of Brazilian geology, presenting a remarkably large and exceptionally high-quality amethyst geode. The inner cavity, superbly crystallized, reveals an abundance of quartz points in deep violet tones, almost velvety, that reflect light with captivating brilliance. The natural arrangement of the crystals creates a visually striking effect, transforming this piece into a true jewel of nature. The cathedral-shaped form, so named for its imposing structure and vaulted inner cavity, is typical of some of the world’s finest amethyst formations. The external matrix, robust and well-preserved, contrasts splendidly with the explosion of color and luster of the inner portion, highlighting the millennial geological process that led to its creation. Each crystal, visible in its facets, contributes to a sparkling mosaic that catches the eye. Amethyst is a variety of quartz (SiO2) whose violet color is attributed to the presence of iron impurities and, in particular, to natural irradiation that alters the oxidation states of iron within the crystal structure. Hailing from Brazil, one of the most renowned localities for extracting high-quality amethyst, this specimen embodies the features that make these deposits famous: saturated color, good crystal transparency, and generous size. In addition to its undeniable aesthetic and collecting value, a geode of this scale lends itself to being a magnificent decorative element. Its presence can embellish any setting, from an elegant display room to a refined private study or a living room, acting as a natural focal point and as a testament to nature’s extraordinary artistry. This specimen is in excellent condition, as evidenced by the photographs, and preserves all its structural and chromatic integrity. Any minor irregularities or inclusions should be considered part of its natural formation and attest to its authenticity and origin.
Seller's Story
Spectacular Natural Crystal Cavity — This specimen offers a fascinating glimpse into the depths of Brazilian geology, presenting a remarkably large and exceptionally high-quality amethyst geode. The inner cavity, superbly crystallized, reveals an abundance of quartz points in deep violet tones, almost velvety, that reflect light with captivating brilliance. The natural arrangement of the crystals creates a visually striking effect, transforming this piece into a true jewel of nature. The cathedral-shaped form, so named for its imposing structure and vaulted inner cavity, is typical of some of the world’s finest amethyst formations. The external matrix, robust and well-preserved, contrasts splendidly with the explosion of color and luster of the inner portion, highlighting the millennial geological process that led to its creation. Each crystal, visible in its facets, contributes to a sparkling mosaic that catches the eye. Amethyst is a variety of quartz (SiO2) whose violet color is attributed to the presence of iron impurities and, in particular, to natural irradiation that alters the oxidation states of iron within the crystal structure. Hailing from Brazil, one of the most renowned localities for extracting high-quality amethyst, this specimen embodies the features that make these deposits famous: saturated color, good crystal transparency, and generous size. In addition to its undeniable aesthetic and collecting value, a geode of this scale lends itself to being a magnificent decorative element. Its presence can embellish any setting, from an elegant display room to a refined private study or a living room, acting as a natural focal point and as a testament to nature’s extraordinary artistry. This specimen is in excellent condition, as evidenced by the photographs, and preserves all its structural and chromatic integrity. Any minor irregularities or inclusions should be considered part of its natural formation and attest to its authenticity and origin.
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.
