Lot # 94 - Green Tourmaline in Matrix and Imperial Jasper

Opening Bid : $ 5.00
Pickup Instructions:
Start Date/Time: 02-Mar-2026 7:00:00 AM
End Date/Time: 09-Mar-2026 8:33:00 PM
Current bid:

$31.00

Highest bidder:

Renn911

Auction has ended

Description :

Green Tourmaline (Verdelite)

What it is

Green tourmaline—often called verdelite—is a boron‑silicate mineral that forms in long, striated crystals. It’s part of the tourmaline group, which is known for its wide color range and durability.

Typical Features You’re seeing

  • Rich green coloration, often caused by iron or chromium

  • Columnar or prismatic crystal structure

  • Embedded in a host rock, commonly quartz, feldspar, or mica schist

  • High hardness (7–7.5), giving it a glassy, durable look

Where it forms

Green tourmaline grows in:

  • Pegmatites (coarse‑grained igneous rocks)

  • Metamorphic rocks like schist

  • Regions such as Brazil, Afghanistan, Pakistan, Madagascar, and parts of the U.S.

Why collectors like it

  • Strong pleochroism (color shifts depending on viewing angle)

  • Excellent for jewelry due to hardness

  • Often found in striking, well‑formed crystals


Jasper

What it is

Jasper is a microcrystalline variety of quartz (chalcedony) known for its opaque, earthy appearance. It forms when silica-rich fluids cement fine sediments or volcanic ash.

Typical Features You’re seeing

  • Waxy, smooth surface

  • Opaque green coloration, often from iron silicates or chlorite

  • Fracture lines or mottlingthat give it character

  • Hardness around 6.5–7

Where it forms

Jasper is extremely widespread, forming in:

  • Sedimentary environments

  • Volcanic flows

  • Hydrothermal systems

Common sources include the U.S., Australia, Madagascar, and Africa.

Why collectors like it

  • Endless variety of colors and patterns

  • Takes a great polish

  • Used widely in carvings, cabochons, and decorative pieces


Disclaimer: All gemstone and mineral descriptions are provided to the best of our ability based on visual assessment and available information. None of the stones in this auction have been GIA‑certified or professionally graded. The winning bidder is welcome to have any stone independently certified, graded, or appraised at their own expense. All items are sold as‑is.

Auction History

Highest bidder is Renn911

Date Bid User
09-Mar-2026 8:29:10 PM $31.00 Renn911
09-Mar-2026 8:28:58 PM $29.00 ATrueGem
09-Mar-2026 8:28:58 PM $28.00 Renn911
09-Mar-2026 7:18:11 PM $26.00 ATrueGem
09-Mar-2026 11:56:08 AM $23.00 Wisewillow
08-Mar-2026 7:12:40 PM $21.00 Caveatauctor
08-Mar-2026 7:12:33 PM $18.00 ATrueGem
08-Mar-2026 7:12:33 PM $17.00 Caveatauctor
04-Mar-2026 7:33:44 PM $16.00 ATrueGem
03-Mar-2026 6:32:16 PM $6.00 Basket Farm
02-Mar-2026 6:24:06 PM $5.00 Renn911

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