Lot # 87 - Aventurine, Bloodstone, Amazonite, Green Tree Agate and More

Opening Bid : $ 5.00
Pickup Instructions: jan 25 10am
Start Date/Time: 02-Mar-2026 7:00:00 AM
End Date/Time: 09-Mar-2026 8:26:00 PM
Current bid:

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Description :

Aventurine

Aventurine is a variety of quartz that contains tiny mineral inclusions—usually mica, fuchsite, or hematite—that create a subtle sparkle called aventurescence. Traits:

  • Soft to medium green, often slightly translucent

  • Shimmery or glittery effect when turned in the light

  • Smooth, even texture Origin: Forms in silica‑rich environments where small plate‑like inclusions get trapped during quartz growth.


Bloodstone (Heliotrope)

Bloodstone is a dark green chalcedony with distinctive red spots caused by iron oxide. Traits:

  • Deep, almost forest‑green base

  • Red flecks or splashes that look like droplets

  • Opaque and dense Origin: Forms in silica‑rich hydrothermal systems; the red inclusions are hematite or jasper.


Amazonite

Amazonite is a green to blue‑green variety of microcline feldspar. Traits:

  • Bright turquoise‑green color

  • White streaks or grid‑like patterns

  • Slightly pearly sheen Origin: Found in granitic pegmatites—slow‑cooling pockets of magma that allow large feldspar crystals to form.


Green Tree Agate

Despite the name, this isn’t actually an agate in the strict sense. It’s a white chalcedony with green dendritic (branch‑like) inclusions. Traits:

  • White or pale background

  • Mossy, branching green patterns that resemble foliage

  • Opaque to slightly translucent Origin: The “tree” patterns come from manganese or iron minerals that seep into fractures as the stone forms.

Disclaimer: All identifications are based solely on visual examination of the photographs provided. I do my best to describe each specimen accurately, but I am not a certified geologist, and some assessments may be incorrect. Buyers should review the images carefully and verify details independently.

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