Topic Schedule for Meeting Presentations

These meetings will continue both on-line through zoom and in person simultaneously for the first meeting of the month but not the second meeting of the month which will be in person.

Everyone is welcome (including non members) to join us the Forest Grove Senior Center for either meeting. If you would like to join us on line for the second Thursday of the month, and are not currently a member please send a notice through the contact so we can send you the link through email.

Below is our presentation topic schedule but, check out our web calendar for new and updated member activities, field trips and events.

Date
2023		SpeakerTopic / Other club business. All meetings at Forest Grove Senior Center unless specified
May 25Social Meeting, lots of discussion and club updates.
May 28
& June 25th		Junior Geologist Program on Sunday 2-3 at Brookwood Library in multipurpose room
June 8thRegular Meeting at 7:30pm & field trip discussion / sign up
June 10thField trip to Codas

📣 Announcing our Juniors program. Meeting at multi purpose room in Brookwood Library, Sun. May 28 and June 25th, 2-3pm., for Kids 5 and up. Parents are required to attend with kids.

Please to RSVP (at the link below) to “Gordon / jrs. program” and include in the description the names and number of people attending at https://tvgc.org/contact/

This program is open to non members and members who can rsvp through the contact because of space availability.

Mineral of the Month Calcite

Calcite is one of the most common minerals on earth.

The mineral calcite cleaves in three directions and is parallel to the rhombohedral form which means that the three angles will never be perpendicular. It only has a hardness of three so it cannot scratch glass as quartz would. When calcite is treated with dilute hcl it has a bubbling effect. It also exhibits fluorescence at times.

It’s crystal habit can be botryoidal (looks like soap bubbles), drusy, globular, rhombohedral, stalactite as a matter of fact calcite has 300 different types of crystal formations more than any other mineral! It’s most common color is clear, white, pink, yellow, orange, reds, greens but it has more colors depending on it’s included impurities.

Calcite has more uses than almost any other mineral. It can be used for construction, agriculture, pharmaceuticals, and household uses such as in paints, abrasives in cleaners not to mention those beautiful household decorations.