Quartzite
Alexandrita
Brazil
Quartzite
Fusion Rainbow
Brazil
Fusion Rainbow
Photo coming soon
HardnessVery Hard(7–8 Mohs)
SoftHard
Acid SensitivityLow Risk
SafeHigh Risk
Stone TypeQuartzite
Geological NameQuartzite
OriginBrazil
ASTM SpecificationASTM C616
ClassificationDense Crystalline / Siliceous
Available FinishesPolished, Honed (Matte), Leathered, Brushed
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Resin Fill — UV Yellowing Risk
Fusion Rainbow is typically filled with polyester resin during processing to stabilize micro-fractures and enhance appearance. This resin can yellow over time when exposed to direct sunlight or UV light. This yellowing is irreversible and most noticeable on white, light-colored, and blue stones. For areas with direct sun exposure (near windows, outdoor kitchens, sunrooms), discuss UV-stable epoxy resin options with your fabricator, or consider placement away from prolonged direct sunlight. Ask your supplier whether the slab uses polyester or UV-stable epoxy resin.
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MB Stone I.D. Kit — Test Your Stone
Not sure what stone you have? This kit includes the tools professionals use to identify stone type, test acid sensitivity, check absorption, and determine the right care products.
Shop Stone I.D. Kit — $139.97Alternatives to Fusion Rainbow
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