Actually, there are no known rocks that begin with y. However, there are minerals such as Yellow Copperas, Yellow Ochre, Yttro Cerite, and Yttro Columbite. For more details on these minerals, check out probertencyclopaedia.com. I myself have been looking for a rock that starts with Y. Sorry, I haven't found any. But, again with the minerals, I hope it helps!
Mining
Boy names that start with the letter G:GabrielGaryGavinGeorgeGeraldGilbertGlennGordonGregGregoryGriffinGusGuyGirl names that start with the letter G:GabrielleGabyGaleGenevieveGeorgiaGinaGloriaGraceGretaGwendolyn
no states start with the letter Z
Items that start with the letter m:macaronimacemagazinemakeupmalletmanmapmattressmeatmedicinemicemirrormistletoemittensmoccasinsmolassesmoneymonkeymoonmoosemopmosquitomotelmothermotorcyclemountainmouthmufflermugmulchmulemusclemushroommustachemustard
Some minerals that start with the letter "i" include ilmenite, iodargyrite, and iolite.
Some minerals that start with the letter "J" include jade, jasper, and jacinth.
Marble.
gypsums
Yttrofluorite, Yttrotantalite, yellow jasper
Minerals help your body grow, and to develop. When people don't get enough of these important minerals then they start to get health problems.
aluminum
borax
Actually, there are no known rocks that begin with y. However, there are minerals such as Yellow Copperas, Yellow Ochre, Yttro Cerite, and Yttro Columbite. For more details on these minerals, check out probertencyclopaedia.com. I myself have been looking for a rock that starts with Y. Sorry, I haven't found any. But, again with the minerals, I hope it helps!
carbon
Mining
where is birds kept in? start with the letter a