https://www.purplegrape.in Latest Products Sun, 15 Mar 2026 01:00:36 +0530 en-us https://www.purplegrape.in https://www.purplegrape.in/quartz-lumps.htm https://www.purplegrape.in/quartz-lumps.htm Thu, 18 Sep 2025 00:00:00 +0530 https://www.purplegrape.in/silica-powder.htm https://www.purplegrape.in/silica-powder.htm Thu, 18 Sep 2025 00:00:00 +0530 https://www.purplegrape.in/cryptocrystalline-quartz-lumps.htm https://www.purplegrape.in/cryptocrystalline-quartz-lumps.htm Thu, 18 Sep 2025 00:00:00 +0530 Fine-grained silica (chalcedony, agate) used for decorative and industrial purposes. Texture: Microcrystalline https://www.purplegrape.in/silica-quartz-lumps.htm https://www.purplegrape.in/silica-quartz-lumps.htm Fri, 10 Oct 2025 00:00:00 +0530 High-purity crystalline silica widely used in glass, ceramics, and engineered stone industries. Purity: up to 99.9% SiO₂ Color: White  https://www.purplegrape.in/glass-powder.htm https://www.purplegrape.in/glass-powder.htm Thu, 18 Sep 2025 00:00:00 +0530 Essential raw material for flat glass, fiberglass, and specialized glass manufacturing. https://www.purplegrape.in/white-quartz-crystal-lumps.htm https://www.purplegrape.in/white-quartz-crystal-lumps.htm Thu, 18 Sep 2025 00:00:00 +0530 Widely used sedimentary rock for cement, steel, glass, and construction industries. Hardness: Mohs 7 https://www.purplegrape.in/white-limestone-lumps.htm https://www.purplegrape.in/white-limestone-lumps.htm Thu, 18 Sep 2025 00:00:00 +0530 Widely used sedimentary rock for cement, steel, glass, and construction industries. Composition: CaCO₃ rich https://www.purplegrape.in/crystalline-silica-powder.htm https://www.purplegrape.in/crystalline-silica-powder.htm Thu, 18 Sep 2025 00:00:00 +0530 Hard silica mineral used in foundries, abrasives, and industrial processing. Hardness: Mohs 7 https://www.purplegrape.in/cristobalite-silica-powder.htm https://www.purplegrape.in/cristobalite-silica-powder.htm Thu, 18 Sep 2025 00:00:00 +0530 Silica forms like tridymite & cristobalite, stable at high temperatures, used in refractories. https://www.purplegrape.in/amorphous-silica-powder.htm https://www.purplegrape.in/amorphous-silica-powder.htm Thu, 18 Sep 2025 00:00:00 +0530 Non-crystalline silica with high surface area, used in paints, rubber, and coatings.