Rare Specimens
rare specimens — pre-owned
Browse 3,029 rare specimens — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.
AZURITE LARGE CRYSTALS - MILPILLAS MINE - 25g. RARE GEMSTONE SPECIMEN
Weight: About 25g. Origin: Ex. Remarks: Large crystals. Al slabs or lapidary rough can have unforeseen weaknesses including hidden cracks and soft / weak areas. There is no way to test slabs without attempting to break them with applied pressure.
RARE TASMANIAN BRUCITE!!! Gorgeous Miniature, One Time Find Closed Location
This is a VERY rare new find Brucite (yes, BRUCITE!!) miniature from the 1925 Level of the Avebury Nickel Mine in Zeehan, Tasmania, Australia. It features what is potentially the largest intact single crystal of the entire find. These specimens were found in November of 2023, and brought directly from the mine to my friend that I purchased this from. Since pulling this material was not the objective of the mining project, the pocket was quickly shock-creted and fenced off by the mining company. Thus, an incredibly limited amount of this material exists on the market.
Beautiful Wulfenite Mimetite specimen
Beautiful 1.5 inch orange Wulfenite and Mimetite specimen from Rowley mine, Arizona..
Chrysanthemum Stone Nice and 100% Natural China! 239gr
Hello, here is a 100% Natural Very well defined Chrysanthemum Stone with super contrasting Bright White colors on its deep Black colored host Matrix! This neat piece is from China!
Bishop Mine World Class Turquoise Crystals on Quartz-Lynch Station, Virginia
Enjoy ~ Steve. Class: Crystals on Matrix. Turquoise: CuAl6(PO4)4(OH)8 · 4H2O. Quartz: SiO2. Size Range: Large Miniature (5.5-7.0 cm).
BIG SUR JADE OCEAN TUMBLED AMAZING COLOR 248 GRAMS - 8.7 Oz's JADE COVE CA
BIG SUR JADE OCEAN TUMBLED. REIKKI MASSAGE STONE FROM JADE COVE CALIFORNIA. Spanish Conquistadors saw natives holding pieces of the stone to their sides to cure or relieve various aches and pains. AMAZING JADE.
Gem Silica Azurite Gemy Sweet Rare Cabochon 8.5 Grams or 42.5 Carats Austrilia
Gem Silica Azurite. Chrysocolla and Azurite are a types of Copper Ore Gem Silica is Incased in Quartz. 42.5 Carats.
Glaucophane Mineral Specimen San Benito County California
Approximately 4.5 x 3 x 2.5 cm. Collected 1950s. This is a nice miniture sized specimen.
Historical Les Frages Pyromorphite with Provenance-Paul Zerfuss Collection
Ex Paul Zerfuss Collection (Original Label included). In addition, the bottom side features a 10.0 x 7.0 mm grouping of Goethite crystals. Cleaved from the Quartz host deposit, the backside is flat and hosts Pyromorphite micro-crystals dispersed amongst the Quartz micro-crystals left from cleaving.
Stunning Ferberite specimen
2 inch + ferberite from the Oregon mine Colorado
Rare Pink Fresnoite Thumbnail specimen
Rare 1cm pink fresnoite crystal from California
Stunning Ferberite thumbnail specimen
2cm + ferberite from the Oregon mine Colorado
Drusy Chrysocolla - Ray Mine AZ - Rare Museum Grade Druzy A+++ - BIG 4.5" @
Collected in the 1970's by a miner. In such instances, received item(s) may appear duller until professionally polished. Location of discovery: Ray Mine, Arizona. All of our minerals are 100% natural unless otherwise noted and hand-picked directly from the mine sources.
You save $47.90
Rare Natural Epidote Green Specimen Crystal Healing w/ Wood Base 1 lbs 482 gm 4"
Gorgeous natural Epidote crystal cluster with a wood base. The wood base is cut to fit the stone. Epidote has the ability to increase your energy levels and is useful for strengthening the physical body.
Rare Fluorescent Fluorapatite & Acicular Magnetite - Pilot Knob, MO - REE...
Locality: Pilot Knob Tailings (Lower Ore Body), Iron County, Missouri.
Rare Yellow Sapphire TWINw/ green Inclusions 7.53g Sri Lanka, Collectors Piece
This is a Perfect piece for any Serious Sapphire Collector! Definitely a more Rare formation! 🎉Also PERFECT for those mineral collectors looking for incredible inclusions! There are two mystery/unknown green-globular mineral inclusions that grew inside one of the crystal faces of this unique Sapphire Twin-Duo-I’m sure you can see them! What do you think it is???? 🧐 Sapphire is also the Birthstone for September *virtually no damage yall!* 💛AA; 7.53g Yellow Sapphire, Twin formation, From Sri Lanka
Silicon Ingot Cone End Crystal Czochralski Semiconductor Art Piece 10” 4.7lb
Beautiful! Really cool. Honestly stunning. In excellent condition. A few chips around the base, but that appears to be normal for these. Otherwise no other issues. See photos. The base has a black foam that is sort of wearing away and leaving a little bit of black residue on surface.
Big! Light Blue AQUAMARINE CATHEDRAL Crystal Cluster W/ Muscovite Pakistan 668ct
Hello, here is a Big! This Cluster has Beautifullight blue hues with a GOOD translucent clarity and spots of contrasting COLORED shiny silver Muscovite crystals!
Turkish Agate Polished Nodule Pseudomorph Spray Display Fluorescent 10.7 oz
Beautiful Turkish agate nodule with polished face and natural rough exterior. Fluorescent photo was taken with a high-power shortwave UV light. It remains solid and displays well, but the fracture is reflected in pricing.
Turkish Agate Pair Quartz Center Polished Fortification Black Brown Banding 4”
Beautiful matched pair of Turkish agates, cut and polished to a high finish. Each half displays classic fortification banding with strong contrast—alternating layers of black, gray, and brown tones surrounding a bright quartz center.
Eel River Covelo Jade Big Open River Tumbled Rough 226 Grams - 8 Oz’s Californa
Beautiful Covello Eel River Jade. This is a Nice Rough Open River Tumbled Nugget. Very rare type of Jade from Califorina.
Polished Turkish Agate Lavender Banded Scenic Face 4” x 2” 10.5 oz Fluorescent
Beautiful polished Turkish agate with soft lavender, gray, and smoky chalcedony tones. The polished face features clean fortification banding, a striking center formation, and excellent contrast throughout the stone. This specimen has a long, eye-catching display shape with natural exterior matrix and a highly collectible scenic face. A great piece for collectors of Turkish agates, banded agates, and lapidary display stones. Size: 4” x 2” Thickness: 2” Weight: 10.5 oz Natural stone with typical pits, seams, and inclusions from formation. You will receive the exact specimen shown in photos. Fluorescent photo was taken with a high-power shortwave UV light.
Stunning Ferberite specimen
2 inch + ferberite from the Oregon mine Colorado
Stunning Chenevixite specimen
2 inch green chenevixite from the Tintic district in Utah
Stunning Chenevixite specimen
2 inch green chenevixite from the Tintic district in Utah
VERY Translucent! AQUAMARINE Crystal Cluster with Muscovite From Pakistan 925ct
This Cluster has Beautifullight blue hues with a VERY translucent clarity and contrasting shiny silver Muscovite crystals!
RHODOCHROSITE on QUARTZ - Sunnyside Mine, Silverton, San Juan County, COLORADO
Sunnyside Mine, Silverton, San Juan County, Colorado.
Insane Bisbee Malachite Specimen Rough 1960's - 264ct. - AZ Gemologist Seller!
Weight: About 264ct. Fine minerals and mining artifacts from Bisbee and around the world. About this item(s): Exceptionally rare, "toad-skin" or "spider web" matrix, malachite from the old mine works in Bisbee, AZ Collected by miner David Martinez in the 1960's.
You save $15.00
STELLAR Cluster of BISMUTHINITE Crystals - Tasna, Bolivia
A wonderful miniature sized Bismuthinite cluster from Bolivia! Great elongated crystals sprouting from a more amorphous cluster. Great luster! 4.5 x 1.7 x 2.5 cm.
Old Stock Colemanite Crystal Cluster - Boron, CA - Ex. Dr. B. Stinchcomb Coll.
This is a classic, sharp Colemanite crystal cluster from the world-renowned Boron, California locality. Locality: U.S. Borax Mine, Boron, Kern Co., California, USA. While many Boron Colemanites are highly reactive, this specific piece exhibits only subtle, faint fluorescence under UV light.
Stunning Sylvanite With Fluorite thumbnail specimen
1.5cm + sylvanite with fluorite from Cresson pit Colorado weighs 2 grams
Stunning Pyrite Calcite Quartz specimen
1.5 inch pyrite calcite quartz specimen from Oppu mine in Japan
MERELANIITE, ZOISITE - Type Locality - Merelani Hills, TANZANIA
Pink Cobaltoan Calcite Museum Grade Rare Natural Cobalto Large 184g. Congo
Top shelf display. Direct from the mine in Congo. Weight: About 184g. As seen in pictures. Al slabs or lapidary rough can have unforeseen weaknesses including hidden cracks and soft / weak areas.
You save $6.00
Big Sur Jade Lot 50 Ocean Polished Small Jewelry Stones Round Oval Teardrop
These are small Big Sur Jade stones I collected myself in Big Sur. They are naturally polished by the ocean waves and I haven't enhanced them in any way. They are dry and unoiled. They make a great addition to your red coral and or white stones.
Larger! Nice and 100% natural Chrysanthemum Stone from China! 277gr
Hello, here is a 100% Natural Very well defined Chrysanthemum Stone with super contrasting Bright White colors on its deep Black colored host Matrix! This neat piece is from China! 4" or 10.1cm at its biggest or from opposing side to side!
Beautiful Wulfenite Mimetite thumbnail specimen
1.4cm orange wulfenite with mimetite from Rowley mine in Arizona
Chrysanthemum Stone Nice and 100% Natural China! 78.1gr
Hello, here is a 100% Natural Very well defined Chrysanthemum Stone with super contrasting Bright White colors on its deep Black colored host Matrix! This neat piece is from China!
Laguna Lace Agate Faced Slab with Drusy areas Display Specimen 1 lb 1 oz
Agate is a type of chalcedony, known for its banding and variety of colors. These gemstones would be perfect for collectors or for adding a unique touch to any decor. Aesthetic Appeal: Its intricate lace-like patterns, vibrant colors, and translucent quality make it a favorite among collectors, jewelry designers, and gemstone enthusiasts.
You save $2.99
WILLEMITE ANDRADITE & TEPHROITE - Rich Cabinet Specimen From Franklin, NJ E0168
Bright green fluorescence on the willemite. From a famous find that produced arguably the world's best willemite crystals.