I was so excited to source these new Lemurians! I had hoped we had found more Lily Pads-- they were from a different location (Serra Do Cabral) than the original find of Lily Pad Quartz, but soooo cool and so very similar I HAD to have them. Once they arrived and I got a closer look, however, it became evident we have an entirely different animal here, and equally exciting. The combination of chlorite and mica in a Lemurian crystal is a dream come true for those who have difficulty with meditation of who want to improve their practice.
These crystals bring a heightened ability to focus and remain alert during meditation. In addition there is a heart centered emotional component that comes from the Lemurian quartz which gives this particular find its unique energy signature. 
My Personal Experience
One of the first things I noticed about these wonderful Lemurians is how easy it was to focus and remaine focused, even while lying down in bed! While I truly enjoy my meditation practice , finding a comfortable position while sitting is the bane of my existence. I love to lie down to meditate, but that position is not really conducive to remaining alert, and my mind wanders easily, sometimes drifting off to oblivion before I catch it. I have a feeling I am not alone in this predicament, and the steady support of these crystals was a welcome discovery.
The feeling of focus was very much like a gyroscope wanting to remain upright, and always coming back to center if it was pushed a bit. It was steady and unwavering. For quite a while my mind did not wander at all, and after a time, when it did, I immediately noticed and returned to center (for the record, I had one crystal in each hand).
The next thing I noticed was the profound sense of calm. My mind did not chatter, and I experienced two visions in particular that were related and very beautiful. The overall theme was one of receiving gifts. I felt such gratitude deep in my heart that at the time I was nearly brought to tears. In that moment, I felt truly seen, validated, and appreciated for who I was--no more, no less.
As the day progressed, the heartfelt appreciation I felt during meditation lingered with me. I also found myself easily attuned to receiving guidance and remaining in flow. I could act with clarity and ease.
I would like to add that in my experience these are not good sleep crystals. They offer calm, centered, and peaceful focus, and a state of quiet alertness. Hopefully I can spare you a sleepless night with this info, lol. 
Conclusion
I hope that these observations and experiences are helpful to you on your journey. Meditation is such powerful tool for spiritual development and overall well being, and so many people have difficulty establishing a practice due to difficulty with focus. My wish is that these special crystals offer you the support you need to enhance your practice and enrich your life, or begin a new one to expand your horizons.
As always, the information here is gathered from various trusted sources and my own personal experience. It is not intend as medical or therapeutic advice or as a substitute for qualified professional care. Please see my full disclaimer here.