mineralogistes or without the -es just -s
A person that studies minerals is called a minerologist, or more probably a geologist (with a specialty in mineralogy).
A person who studies ancient weapons might be a military historian, or might be an archaeologist. There is more than one reason to study ancient weapons.
A "marine biologist", or more specifically a "marine botanist" (plants).
There are many people who study the human body. I thought of 69 studiers of the human body. I think there might be more, but these are all of the studiers I could think of.adenologist-a person who studies the exocrine and endocrine glandsallergist-a person who studies allergiesanatomist-a person who studies the parts of the bodyandrologist-a person who studies the male reproductive systemanesthesiologist-a person who studies anestheticsangiologist-a person who studies the circulatory and lymphatic systemsanthropologist-a person who studies the origin of the human bodyarteriologist-a person who studies the arteriesaudiologist-a person who studies hearingauxologist-a person who studies the growth of the human bodybronchologist-a person who studies the trachea, bronchi, and bronchiolescardiologist-a person who studies the heartcariologist/cytologist-a person who studies the cells of the human bodycephalologist-a person who studies the headcoprologist/scatologist-a person who studies fecescraniologist-a person who studies the skulldermatologist-a person who studies the skindesmologist-a person who studies ligamentsdiabetologist-a person who studies diabetesembryologist-a person who studies embryosendocrinologist-a person who studies the endocrine systementerologist-a person who studies the small and large intestinesenzymologist-a person who studies enzymesepidemiologist-a person who studies epidemicsfetologist-a person who studies fetusesgastroenterologist-a person who studies the digestive tractgastrologist-a person who studies the stomachgynecologist-a person who studies the female reproductive systemhematologist-a person who studies the blood and blood-producing organshepatologist-a person who studies the liverimmunologist-a person who studies the immune systemiridologist-a person who studies the iris of the eyekaryologist-a person who studies cell nucleikinesiologist-a person who studies the movement of the bodylaryngologist-a person who studies the larynxlymphologist-a person who studies the lymphatic systemmyologist-a person who studies musclesnasologist/rhinologist-a person who studies the nosenephrologist-a person who studies the kidneysneuroendocrinologist-a person who studies the nervous and endocrine systemsneurologist-a person who studies the nervous systemneurophysiologist-a person who studies the functions of the nervous systemnutriologist-a person who studies nutritionodontologist-a person who studies teethoncologist-a person who studies cancerophthalmologist-a person who studies the eyesorganologist-a person who studies anatomical organsosteologist-a person who studies bonesotolaryngologist-a person who studies the ears, nose, and pharynxotologist-a person who studies the earspharyngologist-a person who studies the pharynxphlebologist-a person who studies veinsphysiologist-a person who studies the functions of the parts of the bodypneumologist/pulmonologist-a person who studies the lungsproctologist-a person who studies the large intestineradiologist-a person who studies x-raysreflexologist-a person who studies reflexessacrologist-a person who studies the internal organsserologist-a person who studies blood serumsexologist-a person who studies sexsplenologist-a person who studies the spleenstomatologist-a person who studies the mouthtocologist-a person who studies childbirthtrichologist-a person who studies the hair and scalpurologist-a person who studies the urinary and male reproductive systems
"The Butterfly Whisperer" has a post I hope you can follow, listed below. A person that studies insects , which includes butterflies and moths, is called an "entomologist". More specifically: Lepidopterist
A person who studies languages is most often known as a linguist; more obscure labels include glottologist, grammarian, lexicographer, linguistician, philologist, and polyglot.
Ophiology is the study of snakes whereas Herpetology is the study of snakes and many other reptiles
It could be an astronomer, although more likely an astrophysicist or cosmologist.
Theoretically, you could call that person a braider, but more likely you would call them a hair stylist.
Silicates.
Minerals, Minerals and more Minerals
Major Minerals