Franz Ernst Bruckmann
Encyclopedia
Franz Ernst Bruckmann was a German mineralogist born at Marienthal
near Helmstedt
. Having qualified as a medical man in 1721, he practised at Brunswick
and afterwards at Wolfenbüttel
. His leisure time was given up to natural history
, and especially to mineralogy
and botany
. He appears to have been the first to introduce the term oolithus to rocks that resemble in structure the roe
of a fish
; whence the terms oolite
and oolitic. He died at Wolfenbüttel.
His publications include Magnalia Dei in locis subterraneis (Brunswick, 1727), Historia naturalis curiosa lapidis (1727), and Thesaurus subterraneus Ducatus Brunsvigii (1728).
Mariental, Germany
Mariental is a municipality in the district of Helmstedt, in Lower Saxony, Germany....
near Helmstedt
Helmstedt
Helmstedt is a city located at the eastern edge of the German state of Lower Saxony. It is the capital of the District of Helmstedt. Helmstedt has 26,000 inhabitants . In former times the city was also called Helmstädt....
. Having qualified as a medical man in 1721, he practised at Brunswick
Braunschweig
Braunschweig , is a city of 247,400 people, located in the federal-state of Lower Saxony, Germany. It is located north of the Harz mountains at the farthest navigable point of the Oker river, which connects to the North Sea via the rivers Aller and Weser....
and afterwards at Wolfenbüttel
Wolfenbüttel
Wolfenbüttel is a town in Lower Saxony, Germany, located on the Oker river about 13 kilometres south of Brunswick. It is the seat of the District of Wolfenbüttel and of the bishop of the Protestant Lutheran State Church of Brunswick...
. His leisure time was given up to natural history
Natural history
Natural history is the scientific research of plants or animals, leaning more towards observational rather than experimental methods of study, and encompasses more research published in magazines than in academic journals. Grouped among the natural sciences, natural history is the systematic study...
, and especially to mineralogy
Mineralogy
Mineralogy is the study of chemistry, crystal structure, and physical properties of minerals. Specific studies within mineralogy include the processes of mineral origin and formation, classification of minerals, their geographical distribution, as well as their utilization.-History:Early writing...
and botany
Botany
Botany, plant science, or plant biology is a branch of biology that involves the scientific study of plant life. Traditionally, botany also included the study of fungi, algae and viruses...
. He appears to have been the first to introduce the term oolithus to rocks that resemble in structure the roe
Roe
Roe or hard roe is the fully ripe internal egg masses in the ovaries, or the released external egg masses of fish and certain marine animals, such as shrimp, scallop and sea urchins...
of a fish
Fish
Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...
; whence the terms oolite
Oolite
Oolite is a sedimentary rock formed from ooids, spherical grains composed of concentric layers. The name derives from the Hellenic word òoion for egg. Strictly, oolites consist of ooids of diameter 0.25–2 mm; rocks composed of ooids larger than 2 mm are called pisolites...
and oolitic. He died at Wolfenbüttel.
His publications include Magnalia Dei in locis subterraneis (Brunswick, 1727), Historia naturalis curiosa lapidis (1727), and Thesaurus subterraneus Ducatus Brunsvigii (1728).