Rough White Opal Value Guide

This Rough White Opal specimen represents a raw, uncut form of hydrated amorphous silica sourced from the United States. Unlike precious varieties, this common opal is highly collectible for its distinct waxy luster and natural iron oxide staining that highlights its geological formation.

What Is Rough White Opal Worth?

The typical price range for Rough White Opal is $12 - $15 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• The degree of translucency through the milky white base material.
• The aesthetic placement and intensity of the natural iron staining.
• The overall size and weight of the raw specimen.
• The quality of the waxy luster and lack of significant structural fractures.

How to Identify Rough White Opal?

• Look for a milky, translucent body color without the 'play of color' found in precious opals.
• Identify characteristic iron oxide staining which appears as reddish or brown surface patches.
• Check for a waxy or sub-vitreous luster typical of authentic common opal specimens.
• Verify the amorphous, non-crystalline structure consistent with silica-based minerals.

History of Rough White Opal

Opal is a hydrated amorphous form of silica. Unlike precious opal which displays a play of color, common opal is prized for its waxy luster and translucency. It has been used since antiquity for ornaments and talismans, particularly in Roman and Greek cultures.