How to identify Garden Quartz

To correctly identify Garden Quartz (Included Quartz (Lodolite)), check each of these features in order. Many rocks and minerals look alike, so cross-reference multiple properties before deciding.

Step-by-step identification

1. 1

   Color

   Overall color and any zoning or banding

   Clear to milky white quartz with inclusions of various colors: green (chlorite), red, orange, brown (hematite, goethite), white (kaolinite, feldspar), and sometimes black (manganese oxides). The overall appearance is highly variable depending on the type and distribution of inclusions.

2. 2

   Luster

   How the surface reflects light: metallic, vitreous, dull

   Vitreous (glassy) on crystal faces and fracture surfaces.

3. 3

   Texture

   Grain size and surface feel: coarse, fine, glassy

   Smooth to slightly uneven on crystal faces; conchoidal fracture surfaces are smooth.

4. 4

   Crystal Form

   Shape of visible crystals or crystal faces

   Typically forms as prismatic hexagonal crystals, often terminated, or as massive aggregates. The inclusions are internal and do not alter the external crystal habit of the quartz.

5. 5

   Cleavage

   How it breaks: flat cleavage planes vs irregular fracture

   None. Quartz exhibits no cleavage.

6. 6

   Geological Environment

   The rock formation and setting where it occurs

   Hydrothermal veins, pegmatites, and vugs within various igneous, metamorphic, and sedimentary rocks where silica-rich fluids can deposit quartz and other minerals.

Key Facts

Hardness

7 on the Mohs scale

Specific Gravity

2.65 g/cm³

Crystal System

Trigonal

Color

Colorless to milky white (quartz host) with varied colored inclusions

Luster

Vitreous

Transparency

Transparent to translucent (quartz host)

Fracture

Conchoidal

Cleavage

None

Composition

Silicon dioxide (SiO2) with various mineral inclusions (e.g., chlorite, hematite, goethite, feldspar)

Physical characteristics

• Crystal Habit: Prismatic hexagonal crystals, often terminated; also massive or granular.
• Cleavage Type: None (absence of cleavage planes)
• Fracture Type: Conchoidal (smooth, curved breaks resembling the inside of a shell)
• Tenacity: Brittle
• Luster Type: Vitreous (glassy)

Explore Garden Quartz