Uncategorized

CRINOIDS

Scyphocrinites elegans - Crinoid with lobolith float Upper Silurian Period

Crinoids in the collection of Dan & Connie Snow : Photos by Dan Snow

Scyphocrinites elegans:  Crinoid with lobolith float Upper Silurian Period, Djebel Issoumour, Alnif, Morroco

 

CRINOIDS are know as feather stars or sea lilies and are echinoderms.  A familiar form of echinoderm is the starfish.  Crinoids are alive today in the oceans but were more prevalent in prehistory.  They live primarily in shallow water but have also been found in extreme deep sea environments.

Crinoids resemble a flower with tentacles but are in fact animals.  They are filter feeders and have feather-like appendages that strain food particles from the ocean currents.  Some live as floating organisms but most are attached to the ocean floor by the means of a segmented stem.  Most fossilized crinoids are found disarticulated in beds of numerous fragments but they also can be found in articulated forms as they once were when alive.  The first occurrences of crinoids in the fossil record as found in the Ordovician Period.

SEPTARIAN NODULE

A cut and polished septarian nodule.  First photographed under white light, then short wave ultraviolet light.  It will be in the fluorescent mineral display at the 59th Gem & Mineral Show at the KCI Expo Center March 13th, 14th and 15th, 2020.

DSC_0402DSC_0432

Photographed by Dan Snow

 

 

 

Calendar of Events

March 13, 14, & 15, 2020 Kansas City, Missouri:  59th ANNUAL GEM & MINERAL SHOW Presented by: The Association of Earth Science Clubs of Greater Kansas City.  PARK FREE at the KCI EXPO CENTER 11730 NW Ambassador Dr. Exit 112th St. off I-29 or KCI Exit (Cookingham Dr.) off I-435.  Show hours:  Friday, 10:00 am to 8:00 pm, Saturday, 10:00 am to 7:00 pm, Sunday 10:00 am to 5:00 pm. For more information see kcgemshow.org

March 21, Kansas City, Missouri: Meeting of Show-Me rockhounds in the Kansas City Library’s Waldo Branch, 201 E. 78th Street.  THIS MEETING WILL BEGIN AT 12:30 A.M. and will run until 2 p.m.

March 21, Catoosa, Oklahoma: Rock swap and open house of the Rough & Tumbled Rock & gem Club.  Saturday, 10 a.m. – 3 p.m. DW Correll Museum.  Form more information, contact Eric Hamshar, 918-266-3612.

March 27-28, Ada, Oklahoma: Annual show of the Ada Gem, Mineral and Fosssil Club, Friday, 8 a.m.-6 p.m.; Saturday, 9 a.m.-5 p.m. Building 1, Potontoc County Agri-Plex.  For more information,  contact Ed Vermilion, 45-527-6431.

March 27-29, Bridgeton, Missouri:  Annual show of the Rock Hobby Club, Friday, 4-8 p.m.; Saturday, 10 a.m.-7 p.m.; Sunday, 10  a.m.-5 p.m. Machinist Auditorium, 12365 St. Charles Rock Road.  Form more information, cntact Roy Hurlburt, Hurlburt@juno.com.

March 28-29, Cedar Rapids, Iowa:  Annual show of the Cedar Valley Rocks & Minerals Society, Saturday, 8:30 a.m. to 6 p.m.; Sunday, 9:30 a.m. to 5 p.m. Hawkeye Downs, 4400 6th Street SW.  Form more information contact Marv Houg, mhoug@yahoo.com.

 

 

 

November Waldo Library Display

Show-Me Rockhounds – show-off some of their activities and display specimens of rocks and minerals.  Credit for the display and arrangement goes to Steve.  He put together two very nice posters showing some club activities including wire wrapping, field trips and related photos of interest.  One poster asks it you might be a rockhound.  All specimens are from Steve’s and other members collections.  What a great variety!  Something for everyone.   Photos by Connie Snow

 

 

Wire Wraping Class

First timers get a lesson on how to wire wrap a cabochon or other polished stone.   Club member Linda Nemechek has been making wire wrapped jewlery for some time.  She graciously offered to have a class for club members interested in learning the craft.  We may have another class in the future.  All participants had a great time.  Here are some photos of the event.

 

Club members show their finished wire wrapped pieces.   Photos by Dan Snow