Pink Lady Obsidian Identification Guide

What Pink Lady Obsidian Looks Like

Pink lady obsidian is a trade name for obsidian (natural volcanic glass) displaying soft pink, mauve, or rose tones, sometimes as a subtle sheen from microscopic mineral or bubble inclusions.

• Color: Pinkish to mauve, often blended with grey, brown, or black; may show a faint sheen.
• Luster: Bright vitreous (glassy).
• Transparency: Translucent on thin edges to opaque.
• Habit: Massive glass; no crystals. Breaks into curved, glassy shards.

Step-by-Step Field ID Checklist

1. Confirm it's glass. Look for a bright, glassy luster and smooth, curved (conchoidal) fracture surfaces with sharp edges.
2. Check for bubbles or flow lines with a loupe — common in obsidian.
3. Tilt for sheen. Any pink sheen should be a soft directional glow, not multicolor opal play.
4. Hardness test. It scratches glass at about its own hardness; harder than a knife.
5. Backlight it. Thin edges show the pink color is in the glass itself.

Key Diagnostic Tests

• Mohs hardness: ~5–5.5.
• Streak: White.
• Fracture: Strongly conchoidal; no cleavage.
• Density: ~2.35–2.5 g/cm³ — light, characteristic of volcanic glass.
• Other: No crystal structure; warms slowly and feels glass-smooth.

Common Look-Alikes and How to Tell Them Apart

• Manufactured/slag glass: Often shows mold marks, very uniform color, and abundant perfectly round bubbles; obsidian shows natural flow banding and irregular inclusions. Slag glass coloring is frequently a giveaway, so verify volcanic provenance.
• Rose quartz: Harder (7), crystalline, no conchoidal-glass shards; scratches the obsidian.
• Pink chalcedony/agate: Harder (~7), waxy not glassy, may show banding.
• Pink opal: Softer/resinous and lighter; lacks obsidian's bright glassy break.
• Dyed/coated glass: Surface-only color that chips to reveal clear glass.

Where Pink Lady Obsidian Is Found

Obsidian forms at rhyolitic volcanic centers worldwide; trade-named varieties are commonly sourced from Mexico and the western USA. Because pink is an uncommon natural obsidian color, scrutinize specimens carefully to rule out manufactured glass.