Pastel Obsidian
Volcanic glass (SiO2-based)
Soft pastel-colored glass sold as obsidian; multicolor pastel material is manufactured art glass rather than natural volcanic obsidian.
- Mohs hardness
- 5-6
- Color
- Soft pastel mixes of pink, blue, green, lilac
- Type
- igneous
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Overview
Pastel Obsidian is a trade name for soft, multicolored pastel glass sold as obsidian. Gentle pinks, blues, greens, and lilacs — often blended together — are not colors that natural volcanic obsidian produces, so pastel "obsidian" is manufactured art glass.
Natural obsidian is dominated by black, brown, gray, and metallic sheens caused by iron and microscopic inclusions. The cheerful pastel palette of this material comes from metal-oxide colorants added during glassmaking.
It is popular for beads, spheres, and tumbled pieces because of its appealing, candy-like colors; it should be understood and sold as decorative glass.
Formation & geology
Genuine obsidian forms from rapidly cooled rhyolitic lava frozen into glass, with iron giving its natural dark colors. Soft multicolored pastels fall entirely outside this natural range.
Pastel glass is manufactured by melting silica with fluxes and adding varied colorants and opacifiers to achieve the soft tones, sometimes swirling several colors together before cooling.
Accordingly, "pastel obsidian" has no natural volcanic locality and is an industrial or artisanal glass product.
How to identify it
Treat any soft multicolored pastel "obsidian" as glass. Tell-tale signs include very even or deliberately swirled colors, rounded or aligned internal bubbles, pour and swirl marks, and mold seams.
Natural obsidian never appears as blended pastel pinks, blues, and greens; its colors are dark with at most a directional metallic sheen. Both share vitreous luster, conchoidal fracture, hardness near 5-6, and white streak, so the pastel coloring itself is the clearest giveaway.
If it looks like soft candy-colored glass, it is manufactured glass.
Uses & significance
Pastel Obsidian (art glass) is used for colorful beads, pendants, spheres, and decorative carvings, valued for its bright, soft, eye-catching look at low cost.
It has no industrial role beyond decorative colored glass.
Metaphysical marketing may assign various pastel-color meanings (calm, love, healing), but because the material is manufactured glass these are sales associations rather than mineralogy; ethical sellers disclose the glass origin.
Frequently asked questions
Is pastel obsidian natural?
No. Soft multicolored pastel "obsidian" is manufactured art glass; natural obsidian does not form in pastel colors.
Why do sellers call it obsidian?
It is a trade name borrowing on obsidian being natural glass; the pastel material itself is man-made glass.
How can I be sure it is glass?
Soft blended pastel colors, internal bubbles, swirl and pour marks, and mold seams all indicate manufactured glass.
Is it okay to wear?
Yes, as attractive decorative glass, as long as it is described honestly as glass rather than a natural gemstone.
Pastel Obsidian guides
In-depth guides for identifying, valuing, and understanding Pastel Obsidian.
