The Mineral Collection 2025-02-12 Auction - 191 Price Results - Stefek's Auctioneers & Appraisers in MI - Page 3
Treated Brazilian Yellow Quartz Cluster 685gLarge Natural Amethyst Crystal - 4.41 kgPolished Fossilized Mammoth Tooth Slice on Mount
Done
Roseville, MI, United States
Auction Details

The Mineral Collection

Join Stefek's for our newest single-consignor auction, The Mineral Collection. Featuring a stunning collection of amethyst, agate, Brazilian quartz, smoky quartz, calcite crystals, citrine crystals, geodes, and more, this event showcases a variety of minerals and crystals of all shapes and sizes.

If you are a seasoned collector, a lover of gemstones, or simply captivated by the allure of crystals, you will find an extraordinary array of treasures in this collection.

This is an online only auction - bidding will be conducted via LiveAuctioneers only. If you would like to view any additional photos of an item, or would like a more detailed condition report, please let us know and our staff will be in touch.
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Twenty-Four Amethyst Core Specimens: Collection of twenty-four (24) amethyst core specimens. Some specimens are polished, some are raw/natural. Dimensions: approx. 1 1/2" each. Total Weight: approx. 70 - 100g each.
0051: Twenty-Four Amethyst Core SpecimensEst. $150-$300Lot Passed
SOLD
Amethyst Quartz Pyramid - 216g: Amethyst quartz pyramid. Dimensions: approx. 2 1/2" x 2 1/2" x 1 3/4". Weight: 216g (7.5 oz.).
0052: Amethyst Quartz Pyramid - 216gEst. $20-$50
SOLD
Two Ammonite Fossil Slices - 33mm: Two Ammonite fossil slices from Madagascar. Dimensions: 2 3/4" x 2 1/4" x 1/4".
0053: Two Ammonite Fossil Slices - 33mmEst. $20-$50
SOLD
Nineteen Assorted Gemstone Pendants: Collection of nineteen (19) assorted gemstone pendants for jewelry making. Included stones: lapis lazuli, fluorite, amethyst and other types of quartz, tiger eye, as well as several small geode
0054: Nineteen Assorted Gemstone PendantsEst. $20-$50
SOLD
Natural Polished Amethyst Geode Slice - 853g: Natural polished amethyst geode slice. Dimensions: approx. 6 1/2" x 5 1/2" x 1 1/2". Weight: 853g (1 lbs., 14 oz.).
0056: Natural Polished Amethyst Geode Slice - 853gEst. $50-$100
SOLD
Natural Polished Amethyst Geode Slice - 1515g: Natural polished amethyst geode slice. Dimensions: approx. 8" x 7" x 1 1/2". Weight: 1515g (3 lbs., 5 oz.).
0057: Natural Polished Amethyst Geode Slice - 1515gEst. $50-$100
SOLD
Natural Polished Amethyst Geode Slice - 829g: Natural polished amethyst geode slice. Dimensions: approx. 7" x 6" x 1 1/2". Weight: 829g (1 lbs., 13 oz.).
0058: Natural Polished Amethyst Geode Slice - 829gEst. $50-$100
SOLD
Seven Small "Splash Copper" Pieces: Collection of seven (7) small "splash copper" pieces. "Splash copper" is a unique form of copper art created by splashing molten copper onto a surface and then rapidly cooling it. Dimensions vary.
0059: Seven Small "Splash Copper" PiecesEst. $20-$50
SOLD
Two Optical Calcite Stones - 205g: Two optical calcite stones. Stone 1: 1 1/4" x 1 1/2" x 1 1/4". Stone 2: 1 1/4" x 1 1/4" x 1 1/2". Total Weight: 205g (7.2 oz.).
0060: Two Optical Calcite Stones - 205gEst. $20-$50
SOLD
Twenty-Seven Various Mineral Samples: Collection of twenty-seven (27) mineral samples of varying sizes and composition. Includes hematite, chalcopyrite, malachite, lepidolite, amethyst, and others. There are also several fossils included.
0062: Twenty-Seven Various Mineral SamplesEst. $100-$300
SOLD
Polished Jasper Sphere - 200g: Polished jasper sphere. Dimensions: 2 1/4". Weight: 200g (7 oz).
0063: Polished Jasper Sphere - 200gEst. $20-$50
SOLD
Polished Ruby Fuchsite Sphere - 201g: Polished ruby fuchsite sphere. Dimensions: approx. 2". Weight: 201g (7 oz.).
0064: Polished Ruby Fuchsite Sphere - 201gEst. $20-$50
SOLD
Multicolored Polished Agate Sphere - 123g: Mulitcolored polished agate sphere. Dimensions: approx. 1 1/2". Weight: 123g (4.3 oz.).
0065: Multicolored Polished Agate Sphere - 123gEst. $20-$50
SOLD
Polished Natural Tiger Eye Sphere - 107g: Polished natural tiger eye sphere. Dimensions: approx. 1 1/2". Weight: 107g (3.8 oz.).
0066: Polished Natural Tiger Eye Sphere - 107gEst. $20-$50
SOLD
Natural Polished Amazonite Sphere - 115g: Natural polished amazonite sphere. Dimensions: 1 1/2". Weight: 115g (4.3 oz.).
0067: Natural Polished Amazonite Sphere - 115gEst. $20-$50
SOLD
Natural Polished Sodalite Sphere - 155g: Natural polished sodalite sphere. Dimensions: approx. 2". Weight: 155g (5.4 oz.).
0068: Natural Polished Sodalite Sphere - 155gEst. $20-$50
SOLD
Natural Polished Amethyst Geode Slice - 15lbs.: Natural polished amethyst geode slice. Dimensions: 13" x 9 1/2" x 2 1/4". Weight: approx. 15 lbs.
0070: Natural Polished Amethyst Geode Slice - 15lbs.Est. $80-$150
SOLD
Polished Amethyst Quartz Sphere - 192g: Polished amethyst quartz sphere. Dimensions: 2". Weight: 192g (6.8 oz.).
0071: Polished Amethyst Quartz Sphere - 192gEst. $20-$50
SOLD
Twenty-One Carved Brazilian Quartz Obelisks: Collection of twenty-one (21) carved Brazilian quartz obelisks. Size and weight vary.
0072: Twenty-One Carved Brazilian Quartz ObelisksEst. $30-$60