Linked from

The 12 pages that link to Crystal twinning, each with the reason it gives.

• QuartzRelated: Twinned quartz crystals can form recognizable intergrowths and alter optical behavior.

• MoonstoneRelated: Feldspar layering and twinning help create the internal structure that scatters light.

• SphaleriteRelated: Sphalerite twins can form characteristic penetration shapes, including the macle.

• Alkali feldsparRelated: Repeated twinning produces microcline’s characteristic cross-hatched pattern.

• LabradoriteRelated: Repeated twinning can create the internal structures associated with labradorescence.

• AndalusiteRelated: Andalusite crystals can show characteristic twinning patterns.

• BrookiteRelated: Brookite commonly forms twinned crystals with characteristic intergrowths.

• StauroliteRelated: Staurolite’s cross-shaped specimens are twins formed by repeated crystal orientations.

• Sister cityRelated: This is the common European term for the relationship called a sister-city partnership in the United States.

• StilbiteRelated: Twinning and repeated crystal growth can contribute to stilbite’s clustered appearance.