Minerals in geodes (see below)form spectacular euhedral crystals because ________.
A)all of the elements incorporated in the crystals are in plentiful supply
B)the crystals have abundant room to grow in their hollow surroundings
C)minerals within geodes are always framework silicates
D)minerals within geodes always contain iron

Question

Minerals in geodes (see below)form spectacular euhedral crystals because ________. 
A)all of the elements incorporated in the crystals are in plentiful supply 
B)the crystals have abundant room to grow in their hollow surroundings 
C)minerals within geodes are always framework silicates 
D)minerals within geodes always contain iron

Quizplus · Accepted Answer

Geodes are hollow cavities that form in rocks, often lined with crystals. The hollow space provides abundant room for the crystals to grow unimpeded, allowing them to form in their ideal euhedral shapes with well-defined faces and edges. This is why geodes tend to have spectacular crystal formations. The availability of elements and the mineral composition within the geode are not the main factors contributing to the crystal growth.

Minerals in Geodes (See Below)form Spectacular Euhedral Crystals Because ________