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Hi to all, here I am again. I completed all but three of this crossword puzzle.

#1. Generalized class of the ultramafic igneous rocks typical of the earth\'s mantle.(10 letters. P_R_ _ _T_ _E

#2. The abundance of this mineral in lava usually produces violent, explosive volcanic eruptions.(6Letters) last one is an \"A\"

#3. Lense-shaped igneous intrusion that commonly penetrates between bedding planes of older rock. (9Letters). _ _C_O_ _ _H

Thanks to all,
Kiyt13

Hi Kyt14!

The answera are;

1. PERIDOTITE

2. TEPHRA

3. LACCOLITH

R.

Dear Kiyt14,Sorry for the missed 'I' previously.R.