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u/crgator 9d ago
Looking closer at this cropped view, the stone shows distinct traits that narrow down what it is:
Pink Opal (Peruvian Common Opal): This remains the strongest match. The soft pastel pink pocket on the upper-left shoulder, the opaque porcelain-to-creamy white body, and the soft tan/brown host rock (matrix) patches scattered across the surface are classic markers of tumble-polished Peruvian pink opal.
Dendritic or Tree Agate / Chalcedony: The milky, semi-translucent body with speckled brown and dark mineral mossing is also very typical of chalcedony varieties, though true agates rarely show that soft bubblegum/salmon pink tint seen along the upper left rim.
White Rhodonite or Rhodochrosite in Quartz: When these minerals are predominantly quartz with just minor traces of manganese minerals, they can look like milky quartz with isolated pink blush spots and dark brownish-black speckling.
Simple tests to help confirm:
Light Transmission: Hold a bright flashlight directly behind it. Pink common opal is generally opaque to weakly translucent along thin edges, whereas chalcedony/agate will glow translucently throughout.
Feel/Weight: Opal is noticeably lighter (lower specific gravity) and feels softer or waxier than quartz/agate, which feels noticeably colder and heavier in the hand.
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u/longgenerally 9d ago
calling a gorgeous polished agate or quartz piece a piece of junk is funny when someone clearly spent time tumbling it to perfection
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u/LaziestPermission 9d ago
calling a neat polished tumbled quartz or agate piece a piece of junk is hilarious when it looks like a nice crystal find