What minerals are petrified wood made of?
 Rupert Hochleitner from the Munich "Kingdom of Crystals" (Mineralogical
 The Bavarian State Collection Munich describes the relationships between wood and
 Minerals can stand together.

 Helmut Mayr from the Bavarian State Collection for Paleontology
 and historical geology, together with Maximilian Glas from the
 The editors at extraLapis investigated which minerals are found in fossilized wood.
 have been found so far

 The current location
 The American specialist journalist and gemstone collector Bob Jones from
 Tucson, Arizona, has visited the world's most exquisite "petrified forest":
 One of the largest precious opal deposits in the world is located in Virgin Valley, Nevada.
 United States - the precious opals, some weighing several kilograms, are sourced from
 obtained from fossilized woods:
 The finest wood in the world

 How a forest can even "petrify".
 The Munich paleobotanist Walter Jung explains the problem of the
 The term "petrified forest" is used and describes the various geological history-
 processes in which pebbles and other fossil woods were formed

 How fossil woods are identified
 The Munich wood anatomist Alfred Selmeier gives an overview of the
 various ways to identify petrified wood. He shows the finest
 Tissue structures from "prehistoric times" and provides a helpful overview:
 Coniferous or deciduous wood, palm or fern?

 How pebbles and wood bond together
 Agate specialist Michael Landmesser from the Institute of Geosciences
 (Mineralogy and Gemstone Research) of the Johann Gutenberg University Mainz,
 has taken a closer look at the cells of the petrified wood and offers a new
 Solution to an old and much-discussed problem:
 On the formation of silicified wood

 How to start a collection of petrified wood
 The mineral and fossil dealer Ulrich Dernbach from Heppenheim, himself
 An enthusiastic collector of fossilized wood explains what to look out for when collecting.
 and must be taken into account when buying petrified wood.
 Petrified wood: a collecting area for nature lovers, aesthetes and philosophers.

 From the scientifically and historically significant collections of fossils
 Two types of wood were selected for this extra Lapis; both were produced at the beginning of the
 Established in the 19th century:

 The Prosper Prince von Sinzendorf Collection (1773-1822)
 The Heinrich Cotta Collection (1763-1844)

 Why fossil woods are so fascinating
 Munich photographer Konrad Götz has been interested in this subject since his youth.
 Dedicated to the landscape. In the petrified woods he found fascinating, mythical
 primeval landscapes and created images that take us from the scientifically comprehensible
 To take reality into a new dimension.
 Images in wood

 With cover, 100 pages in lapis format (21 x 30 cm). Published: 1994