Blue Marble National Geographic Rock Refill raw Madagascar rocks for at-home tumbling
Blue Marble National Geographic Rock Refill four grit grades for stepwise polishing
Blue Marble National Geographic Rock Refill jewelry fastenings enable DIY gemstone jewelry projects
Blue Marble National Geographic Rock Refill learning guide enhances gemstone context and curiosity
Blue Marble National Geographic Rock Refill polished stones ready for jewelry or display
Blue Marble National Geographic Rock Refill supports hands-on learning with quality educational toys
Blue Marble National Geographic Rock Refill ships Madagascar gemstones in a ready-to-use kit

Blue Marble

Blue Marble NATIONAL GEOGRAPHIC Rock Refill – Mega Madagascar Pack (3 lb Gemstones, Grit & Jewelry Settings)

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$45.46

Available quantity: 5.

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Product details

Embark on a hands-on gem journey with Blue Marble's National Geographic Rock Refill – Mega Madagascar Pack

This 3-pound bundle brings raw gemstones from Madagascar in a lively mix, including rose quartz, labradorite, red and yellow jasper, indigo gabbro, and polychrome jasper. Each batch offers a fresh assortment that invites exploration and tactile discovery. You’ll notice color depth, subtle sparkles, and varied textures as you work through the polishing sequence, making every session feel like unearthing a tiny treasure.

With four grit grades—coarse, medium, fine, and polish—you can guide stones from rough beginnings toward a radiant finish. The process blends patience with visible progress, letting you feel the stone smooth under the right pressure and observe colors glow and facets sharpen as you refine the surface.

What’s inside

  • 3 pounds of raw Madagascar gemstones with a dynamic variety (quantities may vary)
  • Four grit grades: coarse, medium, fine, polish for complete polishing progression
  • Jewelry fastenings: 1 necklace, 1 pair of earrings, 1 keychain, 1 ring
  • Learning guide with gemstone facts and curious insights
  • Educational quality and responsive service backing your project

Ways to use this kit

  • Personal gem collection: tumble and set for display
  • DIY jewelry projects: wear polished stones with the included settings
  • Classroom science demos: observe mineral properties and polishing effects
  • Gift-ready keepsakes: craft unique pieces for friends and family

How it works

Start with rough stones and move through the grit spectrum, watching color depth and surface luster emerge as you refine each piece. The process blends patience with visible progress.

  • Gradual smoothing from coarse to polished finish
  • Polish stage adds a glassy shine to exposed facets

Why choose Blue Marble

Quality materials, a detailed learning guide, and dependable customer support help you explore gem crafting with confidence. Benefits are presented as possibilities crafted from real-world use cases.

FAQ

Q: What comes in the Mega Madagascar Pack?

A: Three pounds of raw Madagascar gemstones plus four grit grades, jewelry fastenings, and a learning guide.

Q: Is this kit compatible with most tumblers?

A: Yes, the four grit grades work with most rock tumblers for rough to polished results.

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