Words to Describe silicides

How silicides often is described ("________ silicides")

• epitaxial
• rare
• certain
• earth
• most
• various
• many
• amphoteric
• several
• lower
• higher
• crystal
• ternary
• introduction
• metallic
• corresponding
• stable
• metal
• noble
• conductive
• refractory
• typical
• structural
• rich
• different
• other
• crystalline
• complex
• amorphous