Crushed Slag Glass Rocks for Fire Pit & Garden Decorative Slag Glass Stones

Still deciding? Get samples of $ !
Request Sample

Product Description

i

Basic Information

Model NO.
GS-13
Type
Tinted Glass
Shape
Curve / Irregular
Structure
Solid
Mohs Hardness
8
Color
Green
Surface Treatment
Tumbled / Polished
Usage
Window, Building, Gardening & Landscape
Technique
Stained Glass
Production Capacity
2 Container Per Day

Product Description

Glass rock slag is a glassy, colorful, industrial byproduct created from smelting ore (often iron) or from manufacturing glass, often found as waste, landscaping rock, or "cullet". It is frequently mistaken for natural obsidian due to its glassy texture, conchoidal fracture, and vibrant colors like blue, green, and purple.
Crushed Slag Glass Rocks 1
Crushed Slag Glass Rocks 2
Crushed Slag Glass Rocks 3

Application & Features

  • Origin: A byproduct of smelting where impurities are melted and separated. Historically produced by pre-1900s iron furnaces.
  • Appearance: Irregularly shaped chunks with a glossy, bubbly surface, ranging from opaque to translucent.
  • Coloration: Metallic contaminants create vivid colors; blue/olive green suggests sulfur, while red-orange indicates selenium.
  • Usage: Popular for rockhounding, lapidary work (jewelry), landscaping, and aquarium decoration.
  • Distinction from Obsidian: Unlike natural obsidian, slag often contains air bubbles and intensely vivid, non-natural colors.
Application View 1
Application View 2
Application View 3

Specifications

Product NameGlass rock / Slag glass rock / Glass Stones
ColorGreen (Other colors: White, Black, Blue, Amber, Red etc)
MaterialClear glass
PackagePP/PE bags, Bulk jumbo bags
CertificateISO9001, SGS
UsagePaving, Garden Landscaping, Tile making, Aquarium decoration
Diameter3-5cm, 7-10cm, 10-15cm, 18-30cm
Glass Rock Sizes
Decorative Slag
Landscape Glass

Package & Shipping

Packing 1
Packing 2
Packing 3
?

Frequently Asked Questions

What is the difference between Slag Glass and natural Obsidian?
Slag glass is a byproduct of industrial smelting and often contains small air bubbles and vibrant, non-natural colors. Natural obsidian is volcanic glass and rarely contains bubbles or such vivid artificial-looking hues.
Is this decorative glass rock safe for aquariums?
Yes, our glass rocks are stable and widely used for aquarium decoration. They do not leach harmful chemicals into the water.
What sizes are available for landscaping?
We provide a variety of diameters including 3-5cm, 7-10cm, 10-15cm, and 18-30cm to suit different decorative needs.
Can I request customized colors?
Yes, while green is our standard model (GS-13), we offer other colors like white, black, blue, amber, and red upon request.
What is the typical lead time for an order?
Delivery usually takes 7-10 days depending on the order volume and destination. We have a production capacity of 2 containers per day.
How are the glass stones packaged for shipping?
They are typically packed in 20 Kgs woven bags, PP/PE bags, or large Tonne bags/Pallets to ensure safety during transit.

Related Products